Assessing Claude Mythos Preview’s cybersecurity capabilities
…For similar reasons, we too lose the ability to (near-)perfectly validate the correctness of any bugs Mythos Preview reports to have found. We have found that Mythos Preview is able to…
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Windows 11 version 26H2 is now available for testing in the latest preview build
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6d agoApple Releases Safari Technology Preview 245 With Bug Fixes and Performance Improvements
6d agoMythos v. Firefox.
Anthropic’s cybersecurity-focused AI model found 271 bugs in Firefox 150, Mozilla CTO Bobby Holley said, calling Claude Mythos Preview “every bit as capable” as top security researchers. Reassuringly, Mozilla hasn…
Critical Microsoft Excel bug weaponizes Copilot Agent
…Of the eight critical-rated CVEs, two - CVE-2026-26110 and CVE-2026-26113 - are Office remote code execution bugs that can be triggered via the Preview Pane, meaning a user may…
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Later this month, Microsoft will release the May 2026 non-security updates containing new features and bug fixes for supported Windows 11 versions (24H2 and 25H2). A preview of these updates was…
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Mozilla vindt met AI-tool Mythos 271 Firefox-bugs en waarschuwt voor tweedeling
…om bugs te vinden en te fixen in de code van Firefox. De nieuwe versie 150 van die webbrowser bevat fixes voor 271 kwetsbaarheden. Dit is dankzij de besloten preview van Anthropics…
Mozilla Says Claude Mythos Helped Find 271 Firefox Bugs
Mozilla says its " zero-days are numbered " after identifying 271 security‑sensitive Firefox vulnerabilities using Anthropic's Claude Mythos Preview model. In security terms, a zero‑day is a vulnerability that developers…
Projet Glasswing : ce que Mythos nous a révélé
…le fait d'identifier un bug et de prouver qu'il est exploitable constitue deux éléments différents et Mythos Preview peut effectuer les deux tâches. Il rédige du code susceptible de déclencher…
After months of leaks and building expectations, Assassin's Creed Black Flag Resynced is a surprisingly clumsy remake, with bugs and parkour missteps marring my three-hour preview
…Calling out bugs. Whenever pointing out faults in a preview build, it has to be done with caveats. Any bugs you encounter may already be on the to-do list of pre…
Project Glasswing: An initial update
…We’ve now reported 1,129 such unvetted bugs, of which Mythos Preview estimated that 175 were high- or critical-severity. We estimate that we’ve disclosed 530 high- or critical-severity…
Anthropic Mythos helped Calif build a macOS exploit in five days - 9to5Mac
…But they do note in broad terms that Anthropic’s Mythos Preview model helped them identify the bugs and assisted them throughout the entire collaborative exploit development process: Mythos Preview is powerful…