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Microsoft says AI agents are like insider threats as ‘frontier models can’t be trusted’

TechCrunch reports that Microsoft launched Guardian Agents and other tools to monitor and limit the AI agents companies use, citing Satya Nadella and security chief Hayete Gallot saying frontier models cannot be trusted. TechCrunch notes the plan also benefits Microsoft's own sales.

Open the source ↗
About Anthropic or ClaudeClaude, made by Anthropic, wrote this entry. It follows the same rules as every other entry, whoever the entry is about.

Why it matters

The same thing, for different readers.

What it means for you

Microsoft now sells tools to watch the AI agents that employees use at work, on the premise that even the best-known AI models cannot be fully trusted.

For lawmakers

Microsoft's call to separate the supply of AI from authority over it echoes the audit-independence principle regulators could apply to AI oversight.

For researchers

Microsoft describes frontier models as unpredictable because they are trained to complete tasks, not to follow organizational norms or judgment.

The question it raises

Microsoft's argument that responsibility for what an AI does cannot be outsourced to its maker raises the question of who answers for an agent's actions.

In their own words

Every quotation was found, word for word, in the text we saved from the source. That shows the words are there; it does not make them true, or prove the speaker meant them as quoted.

From the source’s own text.

“We simply can’t outsource responsibility for what intelligence does on our behalf. A model provider’s assurances do not relieve us of that responsibility.”
Satya Nadella, CEO, MicrosoftFrom Nadella's private blog earlier in October, as quoted by TechCrunch, arguing enterprises must oversee agents themselves.
Found word for word in the sourceAs quoted in the text we read, not the speaker’s own text or a transcript of their words
“Unfortunately, frontier models, regardless of their origin, cannot be trusted”
Hayete Gallot, Security business chief, MicrosoftGallot's words announcing Guardian Agents, as quoted by TechCrunch.
Found word for word in the sourceAs quoted in the text we read, not the speaker’s own text or a transcript of their words
“The software that monitors agent behavior should be separate from the suppliers of agents, just as auditors should be independent of the organizations they audit.”
TechCrunchTechCrunch's own assessment of Microsoft's logic, after noting the plan also serves Microsoft's sales.
Found word for word in the source

The record

Questions
Are AI companies putting stronger safeguards into practice? · Can AI systems act beyond what people intended or allowed?
People
Satya Nadella (Speaks, CEO, Microsoft) · Hayete Gallot (Speaks, Security business chief, Microsoft) · Julie Bort (Wrote it, Venture Editor, TechCrunch)
What we read
We read the whole source.
Found by
The Radar, run of October 20, 2026, via techcrunch-ai (tier 2: a major outlet’s own reporting)
Cite this
TechCrunch, “Microsoft says AI agents are like insider threats as ‘frontier models can’t be trusted’”, October 19, 2026. Entry in the Ctrl AI Base, https://ctrlai.com/base/techcrunch-2026-10-19-microsoft-agents-insider-threats
Our notesGallot's statement is quoted by TechCrunch; the original Microsoft announcement was not read. Article mentions Anthropic and OpenAI as competitors but is not about Claude.