TechOnce used to attack AI, ASCII smuggling is now embraced by spammers
A technique known as ASCII smuggling, originally used to conceal prompt injections aimed at AI agents, has been adopted by spammers to evade email filters. It encodes malicious instructions in special Unicode tags that computers can read but humans can barely see.
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Ars Technica★★☆☆☆2026-09-04 17:18Original
Once used to attack AI, ASCII smuggling is now embraced by spammers
Tech