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Project Glasswing: what Mythos showed us

lowcloudflare_securityPublished 2026-05-18

<p></p><p>For the last few months, we've been testing a range of security-focused LLMs on our own infrastructure. These LLMs help identify potential vulnerabilities in our own systems, so we can fix them – and they also show us what attackers are going to be able to do with the latest models.</p><p>None of these LLMs has captured more attention than Mythos Preview, from Anthropic. A few weeks ago

MITRE ATT&CK techniques

Indicators of compromise

Original source: https://blog.cloudflare.com/cyber-frontier-models/