As cited
Copy frozen at (site build).
threat intel
New CSS Attacks Can Break Webmail Defenses to Steal Passwords and Tokens
Researchers demonstrated new CSS-based attacks that allow malicious email content to break out of message boundaries and interfere with webmail interface elements across multiple providers including Outlook, Gmail, Fastmail, Proton Mail, Yahoo Mail, and AOL Mail. These techniques can capture credentials, hijack tokens, and manipulate legitimate user actions within the webmail application.
Why it matters: Email users at any organization relying on these webmail platforms face credential theft and account takeover through specially crafted emails; security teams should assess whether their email security tools catch such CSS manipulation and consider user awareness training about unusual email behavior.
- Source published
- First seen by Cybersecurity Tracker
Source attribution
Correction
Correction recorded as of .
threat intel
New CSS Attacks Can Break Webmail Defenses to Steal Passwords and Tokens
Researchers demonstrated new CSS-based attacks that allow malicious email content to break out of message boundaries and interfere with webmail interface elements across multiple providers including Outlook, Gmail, Fastmail, Proton Mail, Yahoo Mail, and AOL Mail. These techniques can capture credentials, hijack tokens, and manipulate legitimate user actions within the webmail application.
Why it matters: Email users at any organization relying on these webmail platforms face credential theft and account takeover through specially crafted emails; security teams should assess whether their email security tools catch such CSS manipulation and consider user awareness training about unusual email behavior.
- Source published
- First seen by Cybersecurity Tracker