As cited
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threat intel
Attackers conceal phishing lures using invisible Unicode characters
Threat actors are using invisible Unicode characters through ASCII smuggling techniques to conceal phishing lures and bypass email security filters. This method allows malicious content to evade detection while appearing legitimate to recipients. The technique represents an evolving evasion strategy in phishing campaigns.
Why it matters: Security teams and email administrators need to review filter configurations and user awareness training, as invisible character obfuscation can slip past existing defenses designed to catch phishing attempts.
- Source published
- First seen by Cybersecurity Tracker