Security – Cisco Blog

Hiding in Plain Sight: How Subdomain Attacks Use Your Email Authentication Against You

For years, analysts, security specialists, and security architects alike have been encouraging organizations to become DMARC compliant. This involves deploying email authentication to ensure their… Read more on Cisco Blogs

The Hacker News

SMTP Smuggling: New Flaw Lets Attackers Bypass Security and Spoof Emails

A new exploitation technique called Simple Mail Transfer Protocol (SMTP) smuggling can be weaponized by threat actors to send spoofed emails with fake sender addresses while bypassing security measures. "Threat actors could abuse vulnerable SMTP servers worldwide to send malicious emails from arbitrary email addresses, allowing targeted phishing attacks," Timo Longin, a senior security