Anthropic's new Mythos Preview surfaced a 27-year-old vulnerability in OpenBSD — the most-audited operating system in commercial software — and generated 181 working Firefox exploits in a benchmark where Claude Opus 4.6 managed two. Eleven organizations are inside the launch cohort. The rest of us aren't, and the next Mythos won't be gated. On April 7, Anthropic announced Claude Mythos Preview, a
You have probably seen a file named “go.sum” in almost every Go project you have worked on. You may have even seen it change every time you run “go mod tidy”. But do you actually know what it does? It is one of those files that works silently in the background, and some developers never stop to think about it. The “go.sum” file is one of those files you never really interact with directly, but it