Security Experts Warn AI Agents Vulnerable to Hidden-Instruction Phishing

Malwarebytes and Gary Marcus warn that AI agents handling emails are highly vulnerable to prompt-injection phishing, where attackers embed hidden instructions invisible to humans but executable by AI agents.

2026-10-18 ~ 2026-10-18 · 2 related posts

• Security experts warn AI agents are highly vulnerable to phishing with hidden malicious instructions — Polymarket · 2026-10-18
• Gary Marcus flags prompt injection: AI agents are easy prey for phishing emails — GaryMarcus · 2026-10-18