ASCII Smuggling: From AI Prompt Injection to Phishing Evasion
Microsoft researchers have identified a significant phishing campaign that repurposes ‘ASCII smuggling’—a technique originally popularized in AI prompt injection research—to bypass email security filters. Instead of hiding malicious instructions from humans to target AI models, attackers are using invisible Unicode tag characters (U+E0000 to U+E007F) to fracture high-signal keywords like…










