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BragJack attacks hijack AI browser agents through malicious extensions

BACKGROUND
1 SIGNALFIRST DETECTED 19 September 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
19 Sept
Other feeds and industry voices
19 Jun
AutoJack Attack Lets One Web Page Hijack AI Agent for Host Code Execution

Microsoft researchers have detailed an exploit chain, named AutoJack, that turns an AI browsing agent into a delivery vehicle for remote code execution. Steer the agent to

REPORT · HOW · The Hacker NewsOPEN STORY
16 Sept
One Extension Could Hijack AI Assistants Across Chrome, Comet, Edge, Opera Neon and Claude

Security researchers at Forever Security have shown that one ordinary browser extension could take control of the AI assistants built into five Chromium-based products:

REPORT · HOW · The Hacker NewsOPEN STORY
Sources
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