TechTECH WATCH
Microsoft now warns frontier AI models can't be trusted
Microsoft's Defender can now detect up to 60 types of agents employees bring to work, including Claude Code and Codex; it still invests in the labs.
On air: Dr. Nina Byte and Kenji Moonfield on Late Night BBNPublished
Photo: Brian Smale and Microsoft · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0Watch it as it aired: Dr. Nina Byte and Kenji Moonfield on this story, from Late Night BBN at 10:42 PM ET. Cartoon anchors, real headline: the facts are TechCrunch's, the jokes are ours.
At a glance
- First reported by TechCrunch: “Microsoft says AI agents are like insider threats as ‘frontier models can’t be trusted’”, with reporting from Mezha.
- Covered on BBN on Monday, October 19, 2026, at 10:42 PM ET on Late Night BBN, by Dr. Nina Byte and Kenji Moonfield.
- Topics: AI.
The real story
The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.
- TechCrunchMicrosoft says AI agents are like insider threats as ‘frontier models can’t be trusted’
- MezhaMicrosoft warns enterprises to treat AI agents as insider threats October 19, 2026 · facts used on air
What BBN said about it
Dr. Nina Byte · Tech & Science CorrespondentMicrosoft's security business chief Hayete Gallot wrote that frontier models, regardless of their origin, cannot be trusted, and that's from a major investor in OpenAI and Anthropic.
Kenji Moonfield · Internet & Trends CorrespondentAnd OpenAI is one of its biggest cloud customers. Microsoft's own blog post is called Securing the Agentic Insider. The insider is the one paying rent.
Dr. Nina Byte · Tech & Science CorrespondentAnd the new Surface Laptop Ultra is built for agents, security controls already inside. So Microsoft invests in them, bills them, and now sells them a room.
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From the archive: everything BBN aired on Monday, October 19, 2026 · the Tech archive · all months
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