Executive Summary

Threat actors employ ASCII smuggling by inserting invisible Unicode characters into phishing emails to bypass email security filters. The technique hides malicious links and payloads, making detection difficult for traditional filters and increasing the success rate of phishing campaigns.

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Intelligence Metadata - Source Publisher: Bleeping Computer - Published Date: 2026-09-06T14:23:46+00:00 - Category: threat-intel

Original Description: Threat actors have adopted the ASCII smuggling technique in phishing campaigns, using invisible Unicode characters to evade email security filters. [...]

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