ASCII Smuggling Technique Increasingly Exploited by Spammers to Evade Detection
Source Summary
A previously overlooked Unicode block that is invisible to humans is being increasingly used by spammers. The technique, once known primarily for attacking AI systems, is now being widely adopted for spam distribution purposes.
Why it matters
The expanding use of this evasion technique by spammers indicates a growing threat to email filtering and content moderation systems that may not detect hidden Unicode characters.
