ASCII Smuggling
Attackers conceal phishing lures using invisible Unicode characters
Threat actors have adopted the ASCII smuggling technique in phishing campaigns, using invisible Unicode characters to evade email security filters. ASCII smuggling has been used in AI prompt injection attacks to conceal malicious instructions from users by encoding them with Unicode characters from the Tags block (U+E0000–U+E007F). Microsoft threat researchers discovered a large-scale phishing campaign using this […]
Google won’t fix new ASCII smuggling attack in Gemini
Google has decided not to fix a new ASCII smuggling attack in Gemini that could be used to trick the AI assistant into providing users with fake information, alter the model’s behavior, and silently poison its data. ASCII smuggling is an attack where special characters from the Tags Unicode block are used to introduce payloads […]