Amazon's internal AI tools caused at least two company outages
Amazon said that at least two recent AWS outages were caused by the company's internal AI code development tools.
Amazon said that at least two recent AWS outages were caused by the company's internal AI code development tools.
The 13-hour outage in mid-December 2025 was the result of Amazon's Kiro coding AI agent, TechRadar writes .
As a reminder, Amazon engineers are prohibited from using Claude Code for product code or in live projects without official approval. They recommend using Kiro instead.
So it was the AI agent Kiro that decided to delete and recreate the working environment on its own. Although AWS prepared an internal report on the causes of the incident, it was never made public, the sources said.
Although Amazon's own AI tools were partly responsible for the outage, the company stressed that the root cause was "user error, not AI error," attributing the incident to improperly configured access permissions.
“Engineers let the AI agent solve the problem without any intervention,” one source said. “The glitches were minor but entirely predictable.”
Amazon called this particular incident an “extremely limited event,” but another 15-hour outage in October 2025 had broader consequences, affecting popular apps and websites.
Again, sources indicate that the cause was incorrect access rights settings: AI tools were given the same powers as human employees, but their work results did not undergo the same review and approval process that is usually applied to staff actions.
Despite the obvious risks, sources say Amazon is aiming to achieve an 80% adoption rate for AI among its developers, a target that could rise as the technology becomes more popular.
Commenting on the AI-related incidents, the company noted: “Following the December incident, AWS has implemented numerous safeguards.”
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