#
DIFF.BLOG
New
Following
Discover
Jobs
More
Top Writers
Suggest a blog
Upvotes plugin
Report bug
Contact
About
Sign up
The home for great developer writing.
We surface the best developer writing from thousands of independent blogs, updated daily.
Join Diff.blog
TOPICS
security: Malicious AI Assistant Extensions Harvest LLM Chat Histories
·
Sujith Quintelier
·
March 5, 2026, 6:35 p.m.
AI
Cybersecurity
malware
Browser Extensions
Summary
Microsoft reports on malicious AI browser extensions that have been harvesting chat histories from services like ChatGPT and DeepSeek, affecting numerous users and businesses.
Read full post on quintelier.dev →
MORE POSTS LIKE THIS
The Good, the Bad and the Ugly in Cybersecurity – Week 26
Sentinelone ·
Jun 26, 2026
Company
Weekly
AI Agents Are Now Emailing Me with Their Security Concerns
Bruce Schneier ·
Sep 2, 2026
AI
Schneier news
Cyber Apocalypse, Now?
Jordan Schneider ·
Sep 2, 2026
Cybersecurity
AI
AI #184: Post Post Mortem
Thezvi Wordpress ·
Sep 3, 2026
AI
Technology
A Safari extension that hides YouTube AI-labeled videos
Adafruit Industries Blog ·
Sep 2, 2026
AI
safari
security: Impersonating IT support: how threat actors turn a remote session into enterprise-wide access
Sujith Quintelier ·
Sep 3, 2026
Cybersecurity
IT security
Discover more posts →
AUTHOR
Sponsored
Zulip
Organized team chat for people who take work seriously. Topic-based threading keeps conversations focused.
Try Zulip
Become a sponsor →
RECENT POSTS FROM THE AUTHOR
Choose how you want to continue.
Continue with GitHub
Continue with Google