Security/paper/2026-09-16

BragJack Attack Hijacks AI Browser Assistants via Malicious Extensions

A security researcher, Pasquale Pillitteri, reported the discovery of a vulnerability, dubbed "BragJack," which allows a single malicious browser extension to hijack AI assistants across five different browsers. This attack, demonstrated by Pillitteri, can be executed without any user interaction, enabling unauthorized control over the AI agents. The findings highlight a significant security risk for users relying on browser-integrated AI functionalities.

4 articles from 4 outlets covered this story. The underlying claim is sourced from a paper.

What do all outlets agree on?

4 outlets covered “BragJack Attack Hijacks AI Browser Assistants via Malicious Extensions”. All of them report the following:

  • Attack named BragJack
  • Utilizes a single malicious browser extension
  • Hijacks AI browser agents/assistants
  • Occurs without user clicks/interaction
  • Affects multiple browsers

Which outlets covered this?

All 4 articles found on this story, grouped by the stance of the piece. Every link goes to the original publisher.

What related stories are there?

Which companies does this involve?

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