Building powerful AI tools is the goal of companies like Anthropic. But after realizing how powerful its latest update was, Anthropic moved to keep it from the public and turn it into a cybersecurity stress test.

On today’s Big Take podcast, Bloomberg cybersecurity reporter Margi Murphy walks host Sarah Holder through the story of how Anthropic discovered the risks of its Mythos tech and what they could mean for banks, businesses and the government.

Read more: 
How Anthropic Learned Mythos Was Too Dangerous for the Wild
Anthropic’s Mythos Model Is Being Accessed by Unauthorized Users


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Hosted by Sarah Holder; Produced by Julia Press; Reported by Margi Murphy; Edited by Jeffrey Grocott.

Fact-checking by Eleanor Harrison-Dengate; Engineering by Alex Sugiura.

Senior Producer: Naomi Shavin; Deputy Executive Producer: Julia Weaver. Executive Producer: Nicole Beemsterboer.

Building powerful AI tools is the goal of companies like Anthropic. But after realizing how powerful its latest update was, Anthropic moved to keep it from the public and turn it into a cybersecurity stress test.
On today&rsquo;s Big Take podcast, Bloomberg cybersecurity reporter Margi Murphy walks host Sarah Holder through the story of how Anthropic discovered the risks of its Mythos tech and what they could mean for banks, businesses and the government.
Read more:&nbsp;
<ul>
<li aria-level="1"><a href="https://www.bloomberg.com/news/features/2026-04-16/how-anthropic-discovered-mythos-ai-was-too-dangerous-for-release?srnd=undefined">How Anthropic Learned Mythos Was Too Dangerous for the Wild</a></li>
<li aria-level="1"><a href="https://www.bloomberg.com/news/articles/2026-04-21/anthropic-s-mythos-model-is-being-accessed-by-unauthorized-users">Anthropic&rsquo;s Mythos Model Is Being Accessed by Unauthorized Users </a></li>
</ul>
We have a special Bloomberg subscription offer for podcast listeners at <a href="https://www.bloomberg.com/subscriptions/podcasts">Bloomberg.com/podcastoffer.</a>
Hosted by Sarah Holder; Produced by Julia Press; Reported by Margi Murphy; Edited by Jeffrey Grocott.
Fact-checking by Eleanor Harrison-Dengate; Engineering by Alex Sugiura.
Senior Producer: Naomi Shavin; Deputy Executive Producer: Julia Weaver. Executive Producer: Nicole Beemsterboer.

The Big Take from Bloomberg News brings you inside what’s shaping the world's economies with the smartest and most informed business reporters around the world. The context you need on the stories that can move markets. Every afternoon.

The Big Take from Bloomberg News brings you inside what’s shaping the world's economies with the smartest and most informed business reporters around the world. The context you need on the stories that can move markets. Every afternoon.

Big Take

An AI So Powerful Anthropic Kept It From the Public

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/389a2e6a-c608-470c-9a79-b435010e0eca/transcript