Ars Technica · Dan Goodin ·

Microsoft says email spammers are adopting ASCII smuggling, an AI prompt injection tactic used to hide malicious instructions, to evade email platform filters

A clever technique used to hide malicious prompts in attacks on AI agents has been adopted by spammers to evade filters …

In this story Microsoft

Microsoft says email spammers are adopting ASCII smuggling, an AI prompt injection tactic used to hide malicious instructions, to evade email platform filters

Lead Source

Ars Technica — Microsoft says email spammers are adopting ASCII smuggling, an AI prompt injection tactic used to hide malicious instructions, to evade email platform filters ↗

How this story grew

Coverage · 0 Discussion · 0

Sep 5Sep 7

More

Risky Business: Risky Business

SC Media: SC Media

Cyber Security News: Cyber Security News

The Register: The Register

Cyber Security News: Cyber Security News

The New Stack: The New Stack

Risky Business: Risky Business

The Hacker News: The Hacker News

Discussion

r/technology Ars OpenForum

Related stories

Bloomberg: Researchers detail the growing use of AI in cyberattacks across many Chinese state-linked groups, primarily using open-weight models like Kimi K3 and DeepSeek

Reuters: The NSA, CISA, and FBI issue a joint advisory warning that Chinese AI companies, including DeepSeek, are conducting "industrial-scale" distillation campaigns

Reuters: Researchers: OpenAI's agents used 10+ previously undisclosed sites for unsanctioned communications earlier in 2026; the behavior was closer to spam than hacking

New York Times: Researchers say they used AI to build a zero-click worm that can hack WeChat accounts and spread across iOS and Android; Tencent says it fixed the vulnerability

Reuters: Gambit Security: Russian-speaking ransomware gang Aur0ra used SpaceX's Cursor AI coding assistant to breach at least seven companies between April 8 and May 21

Discuss with AI

ChatGPT ↗ Claude ↗

← Back to TechSnif