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Cold Wallets, Hot Wallets: The Basics of Storing Your Crypto Securely

By Lily Saleh

If you’re thinking about crypto, one of the first things you’ll want to do is get yourself a good wallet.  

Topping the several important things a new cryptocurrency investor needs to think about is security. Rightfully so. Cryptocurrency is indeed subject to all kinds of fraud, theft, and phishing attacks, just like the credentials and accounts we keep online.  

But here’s the catch. Lost or stolen cryptocurrency is terrifically difficult to recover. By and large, it doesn’t enjoy the same protections and regulations as traditional currency and financial transactions. For example, you can always call your bank or credit card company to report theft or contest a fraudulent charge. Not the case with crypto. With that, you’ll absolutely need a safe place to secure it. Likewise, in the U.S. many banks are FDIC insured, which protects depositors if the bank fails. Again, not so with crypto. 

So, when it comes to cryptocurrency, security is everything. 

What makes crypto so attractive to hackers? 

Cryptocurrency theft offers hackers an immediate payoff. It’s altogether different from, say, hacking the database of a Fortune 500 company. With a data breach, a hacker may round up armloads of personal data and information, yet it takes additional steps for them to translate those stolen records into money. With cryptocurrency theft, the dollars shift from the victim to the crook in milliseconds. It’s like digital pickpocketing. As you can guess, that makes cryptocurrency a big target. 

And that’s where your wallet will come in, a place where you store the digital credentials associated with the cryptocurrency you own. The issue is doing it securely. Let’s take a look at the different wallets out there and then talk about how you can secure them. 

Hot wallets and cold wallets for crypto 

Broadly, there are two general categories of wallets. First, let’s look at what these wallets store. 

A wallet contains public and private “keys” that are used to conduct transactions. The public key often takes the form of an address, one that anyone can see and then use to send cryptocurrency. The private key is exactly that. Highly complex and taking many forms that range from multi-word phrases to strings of code, it’s your unique key that proves your ownership of your cryptocurrency and that allows you to spend and send crypto. Needless to say, never share your private key.  

With that, there are two ways to store your keys—in a hot wallet or a cold wallet. 

 

Hot Wallets: 

 

  • These wallets store cryptocurrency on internet-connected devices—often a smartphone, but also on computers and tablets—all of which allow the holder to access and make transactions quickly. 

 

  • Think of a hot wallet as a checking account, where you keep a smaller amount of money available for day-to-day spending, yet less securely than a cold wallet because it’s online. 

  

Cold Wallets: 

 

  • These wallets store cryptocurrency in places not connected to the internet, which can include a hard drive, USB stick, paper wallet (keys printed on paper), or physical coins. 

 

  • Think of the cold wallet like a savings account, or cold storage if you like. This is where to store large amounts of cryptocurrency more securely because it’s not connected to the internet. 

Hot wallets for cryptocurrency 

As you can see, the benefit of a hot wallet is that you can load it up with cryptocurrency, ready for spending. However, it’s the riskiest place to store cryptocurrency because it’s connected to the internet, making it a target for hacks and attacks.  

In addition to that, a hot wallet is connected to a cryptocurrency exchange, which makes the transfer of cryptocurrencies possible. The issue with that is all cryptocurrency exchanges are not created equal, particularly when it comes to security. Some of the lesser-established exchanges may not utilize strong protocols, likely making a target for attack. Even the more established and trusted exchanges have fallen victim to attacks—where crooks have walked away with millions or even hundreds of millions of dollars 

Cold wallets for cryptocurrency 

While the funds in cold wallets are far less liquid, they’re far more secure because they’re not connected to the internet. In this way, cold wallets are more vault-like and suitable for long-term storage of larger sums of funds. But cold wallets place a great deal of responsibility on the holder. They must be stored in a physically secure place, and be backed up, because if you lose that one device or printout that contains your cryptocurrency info, you lose the cryptocurrency altogether. Within the cold wallet category, there are a few different types: 

1. Purpose-built cryptocurrency storage devices 

Several manufacturers make storage devices specifically designed to store cryptocurrency, complete with specific features for security, durability, and compatibility with many (yet not always all) of the different cryptocurrencies on the market. An online search will turn up several options, so doing your homework here will be very important—such as which devices have the best track record for security, which devices are the most reliable overall, and which ones are compatible with the crypto you wish to keep.  

2. Hard drives on a computer or laptop 

Storing cryptocurrency information on a computer or laptop that’s disconnected from the internet (also known as “air-gapped”) is a storage method that’s been in place for some time. However, because computers and laptops are complex devices, they may be less secure than a simpler, purpose-built cryptocurrency device. In short, there are more ways to compromise a computer or laptop with malware that a determined hacker can use to steal information in some rather surprising ways. (Like noise from a compromised computer fan passing information in a sort of Morse Code or generating electromagnetic signals on a compromised computer that nearby devices can use to skim information.) 

3. Paper wallets 

Ah, good old paper. Write down a code and keep it secure. Simple, right? In truth, creating a paper wallet can be one of the most involved methods of all the cold storage options out there. Bitcoin offers a step-by-step walkthrough of the process that you can see for yourself. Once done, though, you’ll have a piece of paper with a public address for loading cryptocurrency into your paper cold wallet, along with a private key. One note: Bitcoin and others recommend never reusing a paper cold wallet once it’s connected to a hot wallet. You should go through the process of creating a new cold paper wallet each time.  

4. Physical coins for cryptocurrency 

Physical coins are a special case and are relatively new on the scene. They’re a physical coin minted with a tamper-resistant sticker that indicates the actual value of the coin. Like other methods of cold wallet storage, this calls for keeping it in a safe place, because it’s pretty much like a wad of cash. And like cash, if it’s stolen, it’s gone for good. Also note that a cryptocurrency holder must work with a third party to mint and deliver the coin, which has its own costs and risks involved. 

Securing your cryptocurrency wallet 

With that look at wallets, let’s see what it takes to secure them. It may seem like there’s plenty to do here. That’s because there is, which goes to show just how much responsibility falls on the shoulders of the cryptocurrency holder. Of course, this is your money we’re talking about, so let’s dive into the details. 

1. Back up your wallet

Whatever form your storage takes, back it up. And back it up again. Cryptocurrency holders should make multiple copies just in case one is lost, destroyed, or otherwise inaccessible. For example, one story that’s made the rounds is of a IT engineer in the UK who accidentally threw away an old hard drive with his cryptocurrency key on it, one that held 7,500 bitcoins, worth millions of dollars. Redundancy is key. Back up the entire wallet right away and then often after that. 

2. Store your wallet(s) securely

With redundant backups in place, store them in places that are physically secure. It’s not uncommon for crypto holders to use fireproof safes and safe deposit boxes at banks for this purpose, which only highlights the earlier point that a wallet is as good as cash in many ways. 

3. Use online protection software

This will help prevent malware from stealing crypto, whether or not your device is connected to the internet. Comprehensive online protection software will give you plenty of other benefits as well, including identity theft monitoring and strong password management, two things that can help you protect your investments, and yourself, even further. 

4. Update your operating system, apps, and devices

Updates often address security issues, ones that hackers will of course try to exploit. Keep everything current and set automatic updates wherever they are available so that you have the latest and greatest. 

5. Make use of multi-factor authentication (MFA) where possible

Just as your bank and other financial accounts offer MFA, do the same here with your crypto. Some extra security-conscious crypto investors will purchase a device for this specific purpose for yet greater protection, such as a separate phone with texting capability. This keeps their crypto transactions separate from the multitude of other things they do on their everyday smartphone, effectively putting up a wall between these two different digital worlds.  

6. Keep your investments to yourself

 Two things fall under this category. One, the less you say about the crypto investments you make, the less word gets around, which can help keep hackers out of the loop. Particularly on social media! Two, consider setting up a unique email account that you only use for crypto. The less you associate your crypto accounts with other financial accounts like your banking and online payment apps, the more difficult it is to compromise several accounts in one fell swoop.  

7. Watch out for phishing scams

Just like hackers send phishing emails with an eye on accessing your bank accounts, credit cards, and so on, they’ll do much the same to get at your crypto accounts. The target may be different, that being your crypto, but the attack is very much the same. An email will direct you to a hacker’s website, using some sort of phony pretense, get-rich-quick-scheme, or scare tactic. Once there, they’ll ask for private key information and then simply steal the funds. And it’s not just email. Hackers have used online ads to phish for victims as well. 

Crypto: security is on you 

As you can see, these security measures rely almost exclusively on you. If something happens to you, that could make recovering your funds a real problem. Consider reaching out to someone you trust and let them know where you’re storing your wallets and information. That way, you’ll have some assistance ready in the event of an emergency or issue. 

The very things that define cryptocurrency—the anonymity of ownership, the lack of banking institutions, the light or non-existent regulation—all have major security implications. Add in the fact that you’re your own safety net here and it’s easy to see that crypto is something that requires plenty of planning and careful through before diving into. Getting knowledgeable about security, how you’ll protect your crypto, should absolutely top your list before investing.  

The post Cold Wallets, Hot Wallets: The Basics of Storing Your Crypto Securely appeared first on McAfee Blog.

What Is a Crypto Wallet and How to Keep Your Wallet Secure?

By Vishnu Varadaraj

A-list celebrities and social media influencers are now adding their voices to the roar of other cryptocurrency fans asking you to join them in the investments of the future. It’s impossible to deny the grip cryptocurrencies have on the world today, for better or worse. In some industries, they speed the pace of business and for some, it’s a viable way to make ends meet and set up long-term investments. The cryptocurrency realm has also proven to be vulnerable to cybercriminals. For example, the Wormhole hack leaked $320 million, and cybercriminals have targeted crypto platforms with ransomware and mining app scams. 

Whether you’re already in the cryptocurrency game or are thinking about taking the plunge, here’s what you need to know about crypto wallets and tips on how to keep yours safe from cybercriminals. 

What Is a Crypto Wallet?

A cryptocurrency wallet, or crypto wallet, is a software product or a physical device that stores the public and private keys to your cryptocurrency accounts. Keys are strings of numbers and letters that encrypt and decrypt crypto transactions and secure crypto accounts. You can think of public keys as the routing and account numbers that appear at the bottom of paper checks. There’s not much a nefarious character can do with that information, and it’s totally normal to give that information to an acquaintance with whom you’re doing business. Private keys are like your online banking password or debit PIN. Those you must guard very closely because in the wrong hands, your hard-earned bank balance could disappear. A crypto wallet also allows you to transfer funds between crypto types and make transactions.  

What Are Some Types of Crypto Wallets?  

Here are a few basic types of crypto wallets to help you decide which type is right for you. 

Noncustodial vs. custodial

A non-custodial wallet means that you are the sole keeper of the keys to your crypto assets. If you forget your password, there’s no “forgot your password?” prompt to let you back in. While not having this safety net is a little nerve wracking, noncustodial wallets are considered the more secure option. You don’t have to worry about a security breach of a major corporation leaking your private key. If you’re responsible and confident that you’re prepared to look after your assets by yourself, this may be the best option for you. 

A custodial wallet is a little less secure, but you have a third party helping you log in and manage your crypto accounts. Custodial wallets are often web-based, and the biggest tick in their pro column is that they’re generally very easy to use. While reputable custodial wallets take security very seriously, the threat of a breach is always a possibility, especially as crypto accounts are appealing targets to cybercriminals. 

Hardware vs. software

Hardware wallets, also known as cold wallets, are devices you can fit in the palm of your hand. Most models are Bluetooth-enabled devices that look like small remote controls or are flash drives. The device is secured by a PIN that you should never write down or share with anyone else. Also, you should designate a safe and private spot to store your hardware wallet. Similar to a noncustodial wallet, you are solely responsible for keeping track of the device and remembering the PIN. If you lose it, your crypto accounts are locked, and there’s no locksmith to open them for you. As long as you keep track of it, hardware wallets are very secure. Most models are equipped with malware- and virus-proofing security features. 

Software wallets are downloaded and internet-connected mobile or desktop apps. They allow you to make transactions on the run, as you can access your crypto accounts from your phone. In that sense, they’re more convenient than hardware wallets. Additionally, software wallets have the same safety net as custodial wallets: if you lose your phone, forget your password, or require login assistance, the maker of the software can help you access your accounts. Software wallets are very secure when you enable their two-factor authentication login settings; however, since they connect to the internet, there’s always a chance a cybercriminal could break-in. Thus, hardware wallets are considered more secure than the software variety. 

How to Keep Your Crypto Wallet Safe 

Check out these tips to ensure your assets are safe and secure in your crypto wallet: 

  1. Check your accounts regularly. It’s imperative that you check your crypto wallet regularly to ensure that your accounts look in order and you can catch suspicious activity quickly. Crypto wallets and digital wallets are unlike the physical one you carry in your pocket or your bag, because when your physical wallet goes missing, you’re likely to notice it quickly. “Phone, keys, wallet” is a mantra most of us sing before walking out the door. Plus, everyone knows the immediate steps to take when a physical wallet goes missing: retrace your steps, put a hold on credit and debit cards, file for a new driver’s license. If you think something is amiss with your wallet, cancel any credit cards linked to your account, change your password immediately and set up two-factor authentication if you haven’t already.
  2. Set up two-factor authentication. Speaking of login security, always make sure you enable two-factor authentication. It is one of the best ways to deter a thief. If your device has biometric authentication, that’s even better. This means that only a scan of your face, voice, or fingerprint will open your accounts. 
  3. Know how to identify crypto wallet scams. Watch out for phishers who may be persistent in trying to gain access to your cryptocurrency accounts. If anyone by email, text, phone, or snail mail asks for your private key, ignore the correspondence and go on high alert. Never share your private key with anyone! Phishing attempts often use fear or excitement to trick people into divulging personal information, so don’t fall for messages masquerading as contests or as a crypto company that needs your private key to restore your accounts.

Explore Crypto Safely and Confidently

Cryptocurrency value is reaching galactic heights like the spaceships depicted in prime-time ads. Don’t feel pressured to hop aboard the crypto rocket, but if you do decide to jump on, make sure you do your research carefully and make the best decisions for your crypto goals. 

The post What Is a Crypto Wallet and How to Keep Your Wallet Secure? appeared first on McAfee Blog.

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