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Mythos: The Software Security Conundrum

This Tuesday, Anthropic released its latest LLM, Mythos, to 40+ companies. The selective release is because Mythos can identify and exploit software security vulnerabilities. For example, it has already found ways to get into Linux and take over the machine.

What do you do when you have created something that can unravel our society? Who do you release it to first? Now that it’s released, the risk of it getting into the wrong hands increases. This is right out of a sci-fi novel.

Anthropic has started with Amazon Web Services, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, the Linux Foundation, Microsoft, Nvidia, and Palo Alto Networks, along with 40 others. The hope is that they fix issues in their system fast before Mythos gets into a bad actor’s hands and they hack into a bank or missile system.

Anthropic started Project Glasswing, which has already found thousands of high-severity zero-day vulnerabilities in every major operating system and every major web browser, along with a range of other critical software.

No wonder Anthropic put limits on the Pentagon in using their AI.

In the long run, this is good news that our banking software will be secure, and new code can now be created and tested, knowing it’s clean.

Bottom line is make sure your software is up to date. I would expect several patches in the next few months.

News This Week

• Anthropic's Claude Mythos is too dangerous to release, so they have “Project Glasswing” (Link) (Link) to control the release so it does not get into bad actors’ hands. Mythos AI can help you hack into any system. Here is a warning from the NYT (Link) and VB (Link)

• AI Is Quickly Becoming a Test of Brand Values, Survey Finds. A new Quick Study survey found that only 17% of workers believe AI is reliable without human oversight, 64% expect the need for human review to increase, and 20% say AI has made customer situations worse. Brands are being warned that how they deploy AI is now a public reflection of their values. (Link)

• Claude Managed Agents: get to production 10x faster - This is from Anthropic, so they are tooting their horn. That said it shows how companies are using agents. (Link)

• Instagram Chief Debunks the Resharing-for-Reach Myth. Adam Mosseri confirmed that reposting feed content to Stories does not boost reach, noting that feed posts already get more reach than Stories. His advice to marketers: stop guessing and start pattern-matching — find what already resonates with your audience and double down on it. (Link)

• Gmail's AI Inbox Now Sorts Messages by Behavior Before You Even Open Them. Gmail has launched an AI-powered inbox that filters messages using behavioral signals, past clicks, and relationship data — meaning promotional emails can vanish (Link)

• SEO Platforms Were the Most Replaced Marketing Tool in 2025. AI capabilities, cost pressure, and a shifting search landscape drove more platform replacements in SEO than any other martech category last year. (Link)

• How to Use Reddit Pro's Trends Tool for Organic SEO Wins. Reddit's free business analytics suite, Reddit Pro, includes an underrated Trends feature that tracks keyword conversations, surfaces popular question-phrased threads, and delivers weekly AI-generated sentiment summaries. SEOs are finding it a powerful and often overlooked content ideation engine for understanding real audience intent. (Link)

• Which test won, buy now or add to cart (Link)

• Are you measuring AI visibility wrong? Tom Capper reveals the 4 biggest mistakes in AI prompt tracking and 4 creative ways to expand your list of prompts. (Link)

• Meta Unveils New A.I. Model, Its First From the Superintelligence Lab. The model, Muse Spark, performed better than Meta’s previous A.I. models but lags rivals on coding ability. (Link) (Link) (Link)

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