Authenticated Doesn’t Mean Safe: Why AI Agents Need Action-Level Security
Disclaimer: The views shared here reflect my personal experience and should not be read as an official Microsoft position.
Consider a support agent handling a routine billing query. It can pull customer records, prepare an account report and email the customer.
Then an incoming message tells it to export the full account history and send it to a newly appointed audit contact. The request looks plausible, so the agent complies.
Nothing unusual happens at the authentication layer. The credentials are valid. The agent is allowed to read the records and send email. Yet the account history has just gone to someone who was never entitled to receive it.
The attacker did not need a password. They persuaded software with legitimate access to use that access in the wrong way.
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Securitymodels for AI agents need to account for that kind of...
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