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Before yesterdaySecurity – Cisco Blog

Nine Top of Mind Issues for CISOs Going Into 2023

By Richard Archdeacon

As the majority of the global Covid fog finally started lifting in 2022, other events – and their associated risks – started to fill the headspace of C-level execs the world over. In my role, I regularly engage with CISOs in all kinds of sectors, representatives at industry bodies, and experts at analyst houses. This gives me an invaluable macroview not only of how the last 12 months have affected organizations and what CISOs are thinking about, but also how the upcoming year is shaping up.

Using this information, last year I wrote a blog summing up the nine top of mind issues I believed will most impact CISOs as we headed into 2022. Many of them still ring true now and will continue to do so, but some new concerns have risen up the agenda. Here are the topics that I think will be top of mind in 2023, and what CISOs can do to prepare.

  1. CISO in the firing line

One aspect that has come to the fore this year is the CISO’s position as ‘guardian of customers’ private data’ in the event of a breach, and their responsibilities over the level of disclosure they later provide. And here, we are not only talking about the legal duty to inform regulators, but the implicit moral duty to inform third parties, customers, etc. From my conversations this year, this whole area is getting CISOs thinking about their own personal liability more.

As a result of this, next year we could see CISOs tightening up the disclosure decision making process, focusing on quicker and greater clarity on breach impact, and even looking to include personal liability cover in cyber insurance contracts. CISOs will also likely be pushing more tabletop exercises with the executive leadership team to ask and answer questions around what is showed, to whom, and by whom.

  1. Increasing demands from insurers

Cyber insurance has become a newsworthy topic over the last 24 months, mainly due to the hardening of the market, as insurance products have become less profitable for underwriters and insurers’ costs have risen. But the topic will continue to be in focus as we move into 2023, with insurers demanding greater attribution – aka the science of identifying the perpetrator of a cybercrime by comparing the evidence gathered from an attack with evidence gathered from earlier attacks that have been attributed to known perpetrators to find similarities.

The need for greater attribution stems from the news that some insurers are announcing that they are not covering nation state attacks, including major marketplace for insurance and reinsurance, Lloyd’s – a topic I covered with colleague and co-author Martin Lee, in this blog earlier in the year.

Greater preparation and crystal-clear clarity of the extent to which attribution has taken place when negotiating contracts will be an essential element for CISOs going forward. For more practical advice on this topic, I also wrote a blog on some of the challenges and opportunities within the cyber liability insurance market back in June which you can read here.

  1. Getting the basics right

Being a CISO has never been more complex. With more sophisticated attacks, scarcity of resources, the challenges of communicating effectively with the board, and more demanding regulatory drivers like the recently approved NIS2 in the EU, which includes a requirement to flag incidents that cause a significant financial implication or operational disruption to the service or to others within 24 hours.

With so much to consider, it is vital that CISOs have a clear understanding of the core elements of what they protect. Questions like ‘where is the data?’, ‘who is accessing it?’, ‘what applications is the organization using?’, ‘where and what is in the cloud?’ will continue to be asked, with an overarching need to make management of the security function more flexible and simpler for the user. This visibility will also inevitably help ease quicker decision making and less of an operational overhead when it comes to regulatory compliance, so the benefits of asking these questions are clear.

  1. How Zero Trust will progress

According to Forrester, the term Zero Trust was born in 2009. Since then, it has been used liberally by different cybersecurity vendors – with various degrees of accuracy. Zero Trust implementations, while being the most secure approach a firm can take, are long journeys that take multiple years for major enterprises to carry out, so it is vital that they start as they mean to go on. But it is clear from the interactions we have had that many CISOs still don’t know where to start, as we touched on in point #3.

However, that can be easier said than done in many cases, as the principles within Zero trust fundamentally turn traditional security methods on their head, from protecting from the outside in (guarding your company’s parameter from external threats) to protecting from in the inside out (guarding individual assets from all threats, both internal and external). This is particularly challenging for large enterprises with a multitude of different silos, stakeholders and business divisions to consider.

The key to success on a zero-trust journey is to set up the right governance mode with the relevant stakeholders and communicate all changes. It is also worth taking the opportunity to update their solutions via a tech refresh which has a multitude of benefits, as explained in our most recent Security Outcomes Study (volume 2).

For more on where to start check out our eBook which explores the five phases to achieving zero trust, and if you have already embarked on the journey, read our recently published Guide to Zero Trust Maturity to help you find quick wins along the way.

  1. Ransomware and how to deal with it

As with last year, ransomware continues to be the main tactical issue and concern facing CISOs. More specifically, the uncertainty around when and how an attack could be launched against the organization is a constant threat.

Increased regulation on the payment of ransomware and declaring payments is predicted, on top of the Cyber Incident Reporting for Critical Infrastructure Act of 2022 (CIRCIA), the Ransom Disclosure Act, but that doesn’t help alleviate ransomware worries, especially as this will again put the CISO in the firing line.

CISOs will continue to keep a focus on the core basics to prevent or limit the impact of an attack, and again have a closer look at how any ransomware payment may or may not be paid and who will authorize payment. For more on how executives can prepare for ransomware attacks, read this blog from Cisco Talos.

  1. From Security Awareness to Culture Change

Traditionally CISOs have talked about the importance of improving security awareness which has resulted in the growth of those test phishing emails we all know and love so much. Joking aside, there is increased discussion now about the limited impact of this approach, including this in depth study from the computer science department of ETH Zurich.

The study, which was the largest both in terms of scale and length at time of publishing, revealed that ‘embedded training during simulated phishing exercises, as commonly deployed in the industry today, does not make employees more resilient to phishing, but instead it can have unexpected side effects that can make employees even more susceptible to phishing’.

For the most effective security awareness, culture is key. This means that everyone should see themselves as part of the security team, like the approach that has been taken when approaching the issue of safety in many high-risk industries. In 2023, CISOs will now be keen to bring about a change to a security culture by making security inclusive, looking to create security champions within the business unit, and finding new methods to communicate the security message.

  1. Resignations, recruitment and retention

Last year, we talked about preparing for the ‘great resignation’ and how to prevent staff leaving as WFH became a norm rather than an exception. In the past year, the conversations I have had have altered to focus on how to ensure recruitment and retention of key staff within the business by ensuring they work in an environment that supports their role.

Overly restrictive security practices, burdensome security with too many friction points, and limitations around what resources and tools can be used may deter the best talent from joining – or indeed staying – with an organization. And CISOs don’t need that extra worry of being the reason behind that kind of ‘brain drain’. So, security will need to focus on supporting the introduction of flexibility and the ease of user experience, such as passwordless or risk-based authentication.

  1. Don’t sleep on the impact of MFA Fatigue

Just when we thought it was safe to go back into the organization with MFA protecting us, along came methods of attack that rely on push-based authentication vulnerabilities including:

  • Push Harassment – Multiple successive push notifications to bother a user into accepting a push for a fraudulent login attempt;
  • Push Fatigue – Constant MFA means users pay less attention to the details of their login, causing a user to accept a push login without thinking.

There has been a lot written about this kind of technique and how it works (including guidance from Duo) due to some recent high-profile cases. So, in the forthcoming year CISOs will look to update their solutions and introduce new ways to authenticate, along with increased communications to users on the topic.

  1. Third party dependency

This issue was highlighted again this year driven by regulations in different sectors such as the UK Telecoms (Security) Act which went live in the UK in November 2022 and the new EU regulation on digital operational resilience for financial services firms (DORA), which the European Parliament voted to adopt, also in November 2022. Both prompt greater focus on compliance, more reporting and understanding the dependency and interaction organizations have with the supply chain and other third parties.

CISOs will focus on obtaining reassurance from third parties as to their posture and will receive a lot of requests from others about where their organization stands, so it is crucial more robust insight into third parties is gained, documented, and communicated.

When writing this blog, and comparing it to last year’s, the 2023 top nine topics fit into three categories. Some themes make a reappearance, seem to repeat themselves such as the need to improve security’s interaction with users and the need to keep up to date with digital change. Others appear as almost incremental changes to current capabilities such as an adjusted approach to MFA to cope with push fatigue. But, perhaps one of the most striking differences to previous years is the new focus on the role of the CISO in the firing line and the personal impact that may have. We will of course continue to monitor all changes over the year and lend our viewpoint to give guidance. We wish you a secure and prosperous new year!


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Secure Email Threat Defense: Providing critical insight into business risk

By Kevin Potts

Attackers specifically craft business email compromise (BEC) and phishing emails using a combination of malicious techniques, expertly selected from an ever-evolving bag of tricks. They’ll use these techniques to impersonate a person or business that’s well-known to the targeted recipient and hide their true intentions, while attempting to avoid detection by security controls.

As a result of the requisite expertise needed to combat these complex attacks, email security has traditionally been siloed away in disparate teams and security controls. Practitioners are buried under an ever-growing pile of RFCs, requiring extensive domain-specific knowledge, unending vigilance, and meticulous manual interventions, such as tweaking trust levels and cultivating allow/block lists with IPs, domains, senders, and vendors.

Cisco Secure Email Threat Defense is leading the industry forward with a major shift, elevating email security into a new era; where administration will consist of merely associating specific business risks with the appropriate due diligence response required to remediate against them.

Email Threat Defense has introduced a new Threat Profile that provides the customer with deep insights into the specific business risks of individual email threats and the confidence to act quickly. This new visualization is powered by a new patent-pending threat detection engine. This engine leverages intelligence distilled from Talos global-scale threat research across a massive volume of email traffic into machine learning, behavioral modeling, and natural language understanding.

The detection engine granularly identifies specific underlying threat techniques utilized in the message by the attacker. The identified techniques provide the full context of the threat message as the supporting foundation for the engine to determine threat categorization and the specific risk to the business. These malicious Techniques, together with the threat category and specific business risk, are used to populate the Threat Profile.

Each message’s Threat Profile is identified in real-time, automatically remediated per policy, and surfaced directly to the operator in the message detail views, providing deep contextual insights into the attacker’s intent and the associated risks to the business. As part of a larger Extended Detection and Response (XDR) strategy, the actionable intelligence in Email Threat Defense is integrated with the wider enterprise orchestration of security controls via SecureX, easing the operational burden by decreasing your mean time to remediation (MTTR).

Email Threat Defense delivers a distinct understanding of malicious messages, the most vulnerable targets within the organization, and the most effective means of protecting them from phishing, scams, and BEC attacks. With a clean design and core focus on simplifying administration, Email Threat Defense deploys in minutes to strengthen protection of your existing Microsoft 365 Exchange Online platform against the most advanced email threats.

For more information, visit the Cisco Secure Email product pages, read the Email Threat Defense data sheet, and view the demo video below.

 


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Oh, the scammers online are frightful

By Dave Lewis

Oh, the scammers online are frightful, and the deals they offer seem delightful. No matter what you think you know, let it go, let it go, let it go (to the tune of 1945’s Let it Snow by Vaughn Monroe with the Norton Sisters).

‘Tis the season to find ourselves awash in good tidings and, well, consumerism. While it’s only partly tongue in cheek, we must be honest with ourselves. We spend a lot of money online. Often, we find ourselves leaving things to the last minute and hope that the delivery folks can make the magic happen and send us all the widgets and grapple grommets while we surf the Internet from the safety of our sofas with coffee in hand.

But, not every deal is what it appears to be. Scammers are always lurking in the void of the Internet waiting for a chance to fleece the unexpecting from their hard-earned money. This can manifest itself to the unsuspecting in many ways. There are shipping frauds, gift card giveaways and vishing (phone-based scams).

Scams tend to rely on generating a false sense of urgency. The shipping scam emails often show up in our inboxes as a warning about a missed or delayed package that will be sent back to the point of origin if we don’t answer quickly. Of course, this requires a payment to receive the fictitious package.

These types of shipping scam emails are quite effective this time of year when more often than naught many people have enough orders coming to their house to make a fort with the empty boxes.

The other kinds of attacks are the gift card scams and vishing. The first of which taps into the sense of excitement that a person might receive something for free. “Fill out this form with your credit card information for a chance to win a $200 gift card.” Sadly, this attack works well for older generations  for which giveaways were more common and they aren’t as accustomed to spotting digital swindlers.

The last scam that we will tackle here is often labeled as vishing or voice phishing. This is a method whereby the attackers call a victim and attempt to convince their target that they need to do something which will lead to the exposure of financial information while pressuring the victim to think if they don’t act quickly that they will miss an opportunity for personal gain.

Unfortunately, the aforementioned scams really bring in a lot of return for the criminal element. In 2021, over 92,000 victims over the age of 60 reported losses of $1.7 billion. This represents a 74 percent increase in losses over losses reported in 2020.

One additional scam that plays on the heart strings is the romance scams. A lot of single people find themselves lonely during the holidays and can be manipulated into thinking that they’ve found a romantic match. But this can drain the bank accounts as well.

In 2021, the IC3 received reports from 7,658 victims who experienced over $432 million in losses to Confidence Fraud/Romance scams. This type of fraud accounts for the highest losses reported by victims over the age of 60.

All these attacks prey on people’s emotional responses. So, how do we prepare ourselves? We need to make knowledge a capability and arm ourselves with information that will help us avoid being taken advantage of by criminals.

Passwords are a significant exposure. They are the digital equivalent of a house key. A password will work for anyone that has access to it. We need to utilize technologies such as multi-factor authentication (MFA) on websites where it is possible to do so. So even if bad actors have our password, the victim still needs to approve the login.

If we don’t have the option to use MFA it would be an excellent idea to make use of a password manager. This is a way to safely store passwords and not fall into the trap of reusing passwords on multiple sites. Attackers bank on human nature and if we use the same credentials on multiple sites there is a high possibility that the criminals could gain access to other sites if they compromise just one.

I’m usually one to eschew the practice of New Year’s resolutions but I’ll make an exception. Keep a keen sense about yourselves whenever you receive an email or SMS that you were not expecting. If a deal is too good to be true then, well, it most likely is a scam. If you’re in doubt, try to look up the phone number, email address, person or “organization” offering the “deal.” More often than not, you’ll find lots of people reporting that it’s a scam.

Rather than being visited by the three ghosts of holiday scams, make sure you and your loved ones are prepared for a happy holiday and a prosperous New Year.


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Explorations in the spam folder–Holiday Edition

By Ben Nahorney

Watch ThreatWise TV: Explorations in the spam folder

The spam folder: that dark and disregarded corner of every email account, full of too-good-to-be-true offers, unexpected shipments, and supposedly free giveaways.

You’re right to ignore this folder; few good things come from exploring it. But every once in a while one of these misleading, and sometimes malicious, emails manages to evade the filters that normally siphon them off, landing them in your inbox instead.

Fortunately, it’s easy enough to spot these emails if you know what to look for. We’ve investigated this folder once before, showcasing a variety of scams. With the holiday season in full swing, we thought this would be a good time to revisit how scammers are trying to trick unsuspecting users.

The holiday season is traditionally a time when this type of activity increases, and this year is no different. According to research published by credit reporting agency TransUnion, the average daily number of suspected digital fraud attempts was up 82 percent globally between Thanksgiving and Cyber Monday (Nov 24–Nov 28) compared to the rest of the year (Jan 1–Nov 23) and 127 percent higher for transactions originating in the US.

This level of activity makes it all the more important to be aware of these scams. With that in mind, let’s dive into the spam folder to get a picture of the types of campaigns currently circulating.

A word of caution

While much of the spam circulating is innocuous, many emails are phishing attempts, and some are indeed malicious. To explore these scams, we used a dedicated computer, segmented from the rest of the network, and leveraged Cisco Secure Malware Analytics to safely open the emails before clicking on links or opening attachments. The point being, we do not recommend doing this at home.

10 questions for an amazing gift

By far, the largest category of spam we saw were surveys scams. According to these emails, if you fill out a simple survey you’ll receive “exclusive offers” such as gift cards, smartphones, smart watches, power drills, or even pots and pans.

Image 1 – Survey scam emails

There are even some campaigns that specifically target the holiday shopping season.

Image 2 – Holiday-themed survey scams

Clicking the links in these emails takes the recipient to sites where they are asked to fill out a survey.

Image 3 – Survey landing pages

These pages often include fake testimonials that say how easy the survey is and what they did with their free gift.

Image 4 – Fake testimonials

The surveys are straightforward, comprising 10-20 simple questions that cover demographic information and shopping habits.

Image 5 – Survey questions

After the survey is completed, these sites offer the choice of a handful of rewards. All the recipient must do is pay for shipping. They are then brought to a page where they can fill out shipping and payment information, and the reward is supposedly shipped.

Image 6 – Steps to receive a “special deal”

However, the attempts to make payment often appear to fail, or the recipient is informed that the prize is no longer available.

Image 7 – Failed attempts to claim rewards

An unsuspecting user may simply give up at this point, disappointed that they won’t be getting their free gift. What they may not be aware of, is that they have just given their credit card details away in a phishing scam.

In their 2021 Internet Crime Report, the Internet Crime Complaint Center (IC3) said that Non-Payment / Non-Delivery scams such as these led to more than $337 million in losses, up from $265 million in 2020. Credit card fraud amounted to $172 million in 2021 and has been climbing continuously at a conservative rate of 15-20 percent since 2019.

According to Cisco Umbrella, many of the sites asking for credit card details are known phishing sites, or worse, host malware.

Image 8 – Malicious domain hosting survey scams

Your package is in route

Another topic that we covered the last time we explored these types of scams was package delivery spam. These continue to circulate today. There are a variety of shipping companies impersonated in these campaigns, and some generic ones as well.

Image 9 – Package scam emails

Many of these campaigns claim that a package could not be delivered. If the recipient clicks on a link in an email, they’re brought to a web page that explains that there are outstanding delivery fees that need to be paid.

Image 10 – Steps in package delivery phishing scam

The recipient is further enticed by suggestions that the package contains a big-ticket item, such as an iPhone or iPad Pro. All the recipient is required to do is enter their credit card details to cover the shipping.

Image 11 – Credit card entry steps in package delivery phishing scam

While no outright malicious activity was detected while examining these emails in Secure Malware Analytics, several suspicious behaviors were flagged. Chances are the bad actors behind these campaigns are phishing for credit card details.

Image 12 – Indications of phishing activity

Plain-text messages

Sometimes the simplest approaches can work just as well as the flashiest. This certainly holds true with spam campaigns, given the prominence of plain-text messages.

Image 13 – Plain-text spam email examples

The topics covered in such emails run the gamut, including medical cures, 419 scams, romance and dating, pharmaceuticals, weight loss, and many of the scam types we’ve already covered. Many of these link to phishing sites, though some attempt to establish a dialog with the recipient, tricking them into sending the scammers money.

The IC3 report says that victims of confidence fraud and romance scams lost $956 million collectively, which is up from $600 million in 2020. Healthcare fraud, such as the miracle pills and prescriptions scams, resulted in $7 million in losses in 2021, but nearly $30 million in 2020.  While these types of scams seem generic and easily spotted, they still work, and so it’s important to be aware and avoid them.

Problems with your account

Many emails hitting the spam box attempt to trick users of various services into believing that there is a problem with their account. The problems cover all sorts of services, including streaming platforms, email providers, antivirus subscriptions, and even public records.

Image 14 – Emails indicating problems with an account

If the links are clicked, the recipient is presented with landing pages that mimic the respective services. Any details that are entered will likely be phished, leading to account takeover and/or access to personal records. However, some domains encountered in these cases may do more than just steal information, they could deliver malware too.

Image 15 – Likely malicious activity

Billing scams

Another frequently encountered scam surrounds billing. Many of these appear to be unexpected bills for services the recipient never purchased.

Image 16 – Billing scam examples

These emails include attachments that are designed to look like official invoices. Interestingly, most of the attachments that we looked at this time were harmless. The goal is to get the recipient to call what appears to be a toll-free number.

Image 17 – Billing scam attachments

While we haven’t called any of these numbers, the experience usually unfolds like a standard customer service call. In the end the “agents” simply claim the charges—which never existed in the first place—have been removed. Meanwhile the scammers steal any personal or financial information provided during the call.

Malicious billing scams

While most billing scams we encountered played out as described above, a few did indeed contain malware.

In this example, the email appears to come from an internet service provider, informing us that our monthly bill is ready.

Image 18 – A malicious billing scam email

An invoice appears to be attached, stored within a .zip file. If the recipient opens it and double clicks the file within, a command prompt appears.

Image 19 – Command prompt launched by attachment

This may seem unusual to the recipient, especially since no invoice appears, but by this point it’s too late. The file contains a script that launches PowerShell and attempts to download a remote file.

Image 20 – Contents of batch file

While the remote file was no longer available at the time of analysis, there is a high likelihood it was malicious. But even though we were unable to determine its contents, Secure Malware Analytics flagged the script execution as malicious.

Image 21 – Script launching PowerShell to download further files

Defending yourself

Knowing about prevalent scams, especially during the holiday season, is a first step in guarding against them. Granted the bad actors who distribute these spam campaigns do everything they can to make their scams look legitimate.

Fortunately, there are several things that you can do to identify scams and defend against them:

  • Be wary of any unsolicited offers, giveaways, and other suspicious communications.
  • Ensure that the sender’s email address corresponds with the organization it claims to come from. In many of the examples above they do not.
  • When holiday shopping, stick to known vendors, visiting their websites directly or using their official apps.
  • Do not open links or attachments in emails coming from unknown sources.

But even the best of us can be fooled, and when overseeing a large operation it’s more a matter of when, rather than if, someone clicks on the wrong link. There are elements of the Cisco Secure portfolio that can help for when the inevitable happens.

Cisco Secure Malware Analytics is the malware analysis and malware threat intelligence engine behind all products across the Cisco Security Architecture. The system delivers enhanced, in-depth, advanced malware analysis and context-rich intelligence to help better understand and fight malware within your environments. Secure Malware Analytics is available as a standalone solution, as a component in other Cisco Security solutions, and through software-as-a-service (SaaS) in the cloud, on-premises, and hybrid delivery models.

Cisco Secure Email protects against fraudulent senders, malware, phishing links, and spam. Its advanced threat detection capabilities can uncover known, emerging, and targeted threats. In addition, it defends against phishing by using advance machine learning techniques, real time behavior analytics, relationship modeling, and telemetry that protects against identity deception–based threats.

Cisco Umbrella unifies multiple security functions in a single cloud service to secure internet access. By enforcing security at the DNS layer, Umbrella blocks requests to malware before a connection is even established—before they reach your network or endpoints. In addition, the secure web gateway logs and inspects all web traffic for greater transparency, control, and protection, while the cloud-delivered firewall helps to block unwanted traffic.

Cisco Secure Endpoint is a single-agent solution that provides comprehensive protection, detection, response, and user access coverage to defend against threats to your endpoints. The SecureX platform is built into Secure Endpoint, as are Extended Detection and Response (XDR) capabilities. With the introduction of Cisco Secure MDR for Endpoint, we have combined Secure Endpoint’s superior capabilities with security operations to create a comprehensive endpoint security solution that dramatically decreases the mean time to detect and respond to threats while offering the highest level of always-on endpoint protection.


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Still Using Passwords? Get Started with Phishing-Resistant, Passwordless Authentication Now!

By Jackie Castelli

Going beyond the hype, passwordless authentication is now a reality. Cisco Duo’s passwordless authentication is now generally available across all Duo Editions.

“Cisco Duo simplifies the passwordless journey for organizations that want to implement phishing-resistant authentication and adopt a zero trust security strategy.”
—Jack Poller, Senior Analyst, ESG

We received tremendous participation and feedback during our public preview, and we are now excited to bring this capability to our customers and prospects.

“Over the last few years, we have increased our password complexities and required 2FA wherever possible.  With this approach, employees had more password lock outs, password fatigue, and forgetting their longer passwords due to password rotations.  With Duo Passwordless, we are excited to introduce this feature to our employees to keep our password complexities in place and leverage different Biometric options whether that is using their mobile device, Windows Hello, or a provided FIDO security key. 

The Duo Push for passwordless authentication feature is simple and easy and introduces a more pleasant experience overall.  Using Duo’s device insight and application policies, we are able to leverage and verify the security of the mobile devices before the device is allowed to be used.  To top it off, Duo is connected to our SIEM and our InfoSec team is able to review detailed logs and setup alerts to be able to keep everything secure.”
—Vice President of IT, Banking and Financial Services Customer

As with any new technology, getting to a completely passwordless state will be a journey for many organizations. We see customers typically starting their passwordless journey with web-based applications that support modern authentication. To that effect, Duo’s passwordless authentication is enabled through Duo Single Sign-On (SSO) for federated applications. Customers can choose to integrate their existing SAML Identity provider such as Microsoft (ADFS, Azure), Okta or Ping Identity; or choose to use Duo SSO (Available across all Duo editions).

“Password management is a challenging proposition for many enterprises, especially in light of BYOD and ever increasing sophistication of phishing schemes. Cisco aims to simplify the process with its Duo passwordless authentication that offers out-of-box integrations with popular single sign-on solutions.”
—Will Townsend, Vice President & Principal Analyst, Networking & Security, Moor Insights & Strategy

Duo’s Passwordless Architecture

Duo Passwordless Architecture

Duo offers a flexible choice of passwordless authentication options to meet the needs of businesses and their use cases. This includes:

  1. FIDO2-compliant, phishing-resistant authentication using
    • Platform authenticators – TouchID, FaceID, Windows Hello, Android biometrics
    • Roaming authenticators – security keys (e.g. Yubico, Feitian)
  2. Strong authentication using Duo Mobile authenticator application

No matter which authentication option you choose, it is secure and inherently multi-factor authentication. We are eliminating the need for the weak knowledge factor (something you know – passwords) which are shared during authentication and can be easily compromised. Instead, we are relying on stronger factors, which are the inherence factor (something you are – biometrics) and possession factor (something you have – a registered device). A user completes this authentication in a single gesture without having to remember a complex string of characters. This significantly improves the user experience and mitigates the risk of stolen credentials and man-in-the-middle (MiTM) attacks.

Phishing resistant passwordless authentication with FIDO2

Passwordless authentication using FIDO2

FIDO2 authentication is regarded as phishing-resistant authentication because it:

  1. Removes passwords or shared secrets from the login workflow. Attackers cannot intercept passwords or use stolen credentials available on the dark web.
  2. Creates a strong binding between the browser session and the device being used. Login is allowed only from the device authenticating to an application.
  3. Ensures that the credential (public/private key) exchange can only happen between the device and the registered service provider. This prevents login to fake or phishing websites.

Using Duo with FIDO2 authenticators enables organizations to enforce phishing-resistant MFA in their environment. It also complies with the Office of Management and Budget (OMB) guidance issued earlier this year in a memo titled “Moving the U.S. Government Towards Zero Trust Cybersecurity Principles”. The memo specifically requires agencies to use phishing-resistant authentication method.

We understand that getting the IT infrastructure ready to support FIDO2 can be expensive and is typically a long-term project for organizations. In addition, deploying and managing 3rd party security keys creates IT overhead that some organizations are not able to undertake immediately.

Alternatively, using Duo Push for passwordless authentication is an easy, cost effective to get started on a passwordless journey for many organizations, without compromising on security.

Strong passwordless authentication using Duo Mobile

We have incorporated security into the login workflow to bind the browser session and the device being used. So, organizations get the same benefits of eliminating use of stolen credentials and mitigation of phishing attacks. To learn more about passwordless authentication with Duo Push, check out our post: Available Now! Passwordless Authentication Is Just a Tap Away.

 

 

Beyond passwordless: Thinking about Zero Trust Access and continuous verification

passwordless authentication

In addition to going passwordless, many organizations are looking to implement zero trust access in their IT environment. This environment typically is a mix of modern and legacy applications, meaning passwordless cannot be universally adopted. At least not until all applications can support modern authentication.

Additionally, organizations need to support a broad range of use cases to allow access from both managed and unmanaged (personal or 3rd party contractor) devices. And IT security teams need visibility into these devices and the ability to enforce compliance to meet the organization’s security policies such as ensuring that the operating system (OS) and web browser versions are up to date. The importance of verifying device posture at the time of authentication is emphasized in the guidance provided by OMB’s zero trust memorandum – “authorization systems should work to incorporate at least one device-level signal alongside identity information about the authenticated user.”

Duo can help organizations adopt a zero trust security model by enforcing strong user authentication across the board either through passwordless authentication where applicable or thought password + MFA where necessary, while providing a consistent user experience. Further, with capabilities such as device trust and granular adaptive policies, and with our vision for Continuous Trusted Access, organizations get a trusted security partner they can rely on for implementing zero trust access in their environment.

To learn more, check out the eBook – Passwordless: The Future of Authentication, which outlines a 5-step path to get started. And watch the passwordless product demo in this on-demand webinar .

Many of our customers have already begun their passwordless journey.  If you are looking to get started as well, sign-up for a free trial and reach out to our amazing representatives.

 


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How can I help protect my company from phishing attacks?

By Greg Barnes

I’m sure you’ve seen them — emails or messages that sound alarming and ask you to act quickly. We live in a digital world that produces hundreds of messages and alerts every day. It’s often hard to determine the validity of a suspicious message or phishing email. Whether you are an administrator, or an end-user, it can be overwhelming to accurately identify a malicious message. When in doubt, here are some questions you should ask yourself:

Is the message from a legitimate sender?

Do I normally receive messages from this person?

If there’s a link, can I tell where it’s sending me?

Attackers continue to evolve their methods, and they’re highly educated on the defenses they come up against in the wild. They’ll craft messages that do not involve any traditional indicators of compromise, such as domains, IP address, or URL links. They’ll also start their attacks by sending messages as an initial lure to establish trust, before sending an email with altered invoice or one claiming to be a helpless employee attempting to get their payroll fixed.

Phishing is a socially-based attack type, one where the threat actors focus on human behavior. When these attacks target organizations, there are multiple levels of attack at play. One that focuses on behavioral patterns and workflow, and the other centers on the victim’s emotional boundaries, such as targeting their desire to help others. You see this pattern frequently in Business Email Compromise (BEC) attacks.

Below, we’ve placed an example of a lure, which will test the victim to see if there is a means to quickly establish trust. Here, the threat actor is pretending to be the Chief Financial Officer (CFO) of the victim’s organization. If the lure is successful, then the threat actor will progress the attack, and often request sensitive records or wire transfers. Notice that in the email headers, the person pretending to be the CFO is using a Gmail account, one that was likely created just for this attack. The message is brief, stresses importance and urgency, and requests assistance, playing on the victim’s workflow and desire to help an executive or someone with authority.

The example below is a simplified one, to be sure, but the elements are legitimate. Daily, emails like this hit the inboxes of organizations globally, and the attackers only need to locate a single victim to make their efforts payout.

Figure 1: An example of an Initial lure to establish trust

In the FBI / IC3 2021 Internet Crime Report, there were nearly 20,000 Business Email Compromise complaints filed, with an adjusted loss of nearly 2.4 billion dollars.  While spoofing the identity of an executive is certainly one way to conduct a BEC attack, the FBI says that threat actors have started leveraging the normality of hybrid-work to target meeting platforms to establish trust and conduct their crimes. When successful, the funds from the fraudulent wire transfers are moved to crypto wallets and the funds dispersed, making recovery harder.

So as an end user what can you do to protect your organization? Be mindful anytime you receive an urgent call to action, especially when the subject involves money. If your workflow means that you regularly receive these types of requests from the specific individual, verify their identity and the validity of the request using another channel of communication, such as in person or via phone. If you do validate their identity via the phone, take care to avoid calling any numbers listed in the email.

Cisco Secure Email helps stop these types of attacks by tracking user relationships and threat techniques. These techniques often include account takeover, spoofing and many more. Using an intent-based approach allows Secure Email to detect and classify business email compromises and other attacks, so administrators are empowered to take a risk-based approach to stopping these threats.

Find out more about how Cisco Secure Email can help keep your organization safe from phishing.


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