Attackers conceal phishing lures using invisible Unicode characters
Phishing campaigns now use invisible Unicode characters to smuggle malicious content past email gateways — a filter-evasion technique that demands updated content-inspection rules.
Summary written by editorial AI · Source link below
Threat actors have adopted the ASCII smuggling technique in phishing campaigns, using invisible Unicode characters to evade email security filters. [...]
Editorial Analysis
Framed for the SOC Analyst desk
Invisible Unicode characters bypass traditional text-based email filters, requiring updated detection logic that accounts for zero-width and tag characters in message bodies.
Test your email-security gateway against ASCII-smuggling samples and tune rules to flag messages containing zero-width or invisible Unicode sequences.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at BleepingComputer in a new tab.
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