CSS was once just about design. Now researchers warn it's powerful enough to exfiltrate data from webmail — and some vendors aren't prepared.
Originally published at darkreading.com
SecurityAI-assisted1 min read
CSS: The Hidden Threat Lurking in Your Inbox
Security researchers have identified CSS as an emerging threat vector for data exfiltration in webmail environments, moving beyond its traditional design-focused role. The vulnerability exploits CSS capabilities to extract sensitive information from email clients, with some vendors lacking adequate protections against these attacks.
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