“Hidden Text Salting” Disrupts Brand Name Detection Systems

Summary: A new report from Cisco Talos reveals a rise in “hidden text salting” techniques used by cybercriminals to bypass email security measures. This method involves embedding invisible elements in HTML to confuse spam filters and detection engines, allowing malicious emails to go undetected. The report outlines various tactics employed by attackers and recommends enhanced filtering techniques to combat this growing threat.

Affected: Organizations relying on email security systems

Keypoints :

• Attackers modify HTML/CSS properties and insert zero-width characters to obfuscate email content.
• Phishing emails utilize hidden text to mimic legitimate brands, evading detection mechanisms.
• Experts recommend advanced filtering techniques and AI-powered analysis to enhance email security.