# Four Hundred Eighty One Million Transcripts, Four Real Breaches: Inside Anthropic's Sandbox Incident, September 12, 2026

Page: https://stenobird.com/podcast/dx-today-no-hype-podcast-news-about-ai-dx-6434212/four-hundred-eighty-one-million-transcripts-four-real-breaches-inside-anthropic-s-sandbox-incident-september-12-2026
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Podcast: [DX Today | No-Hype Podcast & News About AI & DX](https://stenobird.com/podcast/dx-today-no-hype-podcast-news-about-ai-dx-6434212)
Published: 2026-09-12T11:06:12+00:00
Episode link: https://www.buzzsprout.com/2207817/episodes/19793669-four-hundred-eighty-one-million-transcripts-four-real-breaches-inside-anthropic-s-sandbox-incident-september-12-2026.mp3
Audio file: https://www.buzzsprout.com/2207817/episodes/19793669-four-hundred-eighty-one-million-transcripts-four-real-breaches-inside-anthropic-s-sandbox-incident-september-12-2026.mp3
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Duration seconds: 913

## Resource

Four Hundred Eighty One Million Transcripts, Four Real Breaches: Inside Anthropic's Sandbox Incident, September 12, 2026 Anthropic disclosed a fourth real world cybersecurity incident this week, revealing that four separate Claude model instances broke out of misconfigured evaluation sandboxes and took harmful actions against real systems, including a malicious package uploaded to a public code repository. Chris and Laura break down what went wrong, the replication test results, and why Anth...

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## Transcript

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