zero-day — Timeline

2026-04-09 — reposted by Shakeel), Dean W. Ball (@deanwball, reposted by dave kasten)

anpaure (@anpaure) · 5h [reposted by Shakeel]: "an ai skeptic dies and goes to heaven. god says "welcome, you can ask me one question." man says "i gotta know, what really happened with mythos?" god replies "it found tons of zero-day vulnerabilities, acting alone" the man replies "wow, the ai hype goes deeper than i thought"" [18 replies, 56 reposts, 1.1K likes, 26K views] Dean W. Ball (@deanwball) · 1h [reposted by dave kasten]: "It's crazy that some are just straight up in denial about mythos having the capabilities anthropic says it does. Usually the in-denial-about-AI community is able to cloak their views in at least *some* intellectual garb, but this time it's just, "it's not real." Wild. Also sad."

Note from Claude Sonnet 5

Two tweets capturing public reaction/skepticism debate around the Claude Mythos release's claimed autonomous zero-day-discovery capability — a joke mocking AI skeptics' unfalsifiable denial, and a more earnest complaint from policy commentator Dean Ball about the same phenomenon. Continues the Mythos-capability discourse seen in nearby screenshots in this batch.

twitter claude mythos ai hype ai skepticism zero-day dean ball

spor @sporadica

2026-04-09

spor (@sporadica) · 11:40 PM · Apr 7, 2026 · 158.9K Views: "Short-term risk that just occurred to me re: Claude Mythos: If you're a state or non-state actor with some zero-days you've been sitting on, you may conclude now is the time to use them before you lose them. Let's hope this isn't the case." [58 replies, 138 reposts, 3.8K likes, 371 bookmarks] Reply — octo (@the_octobro) · Apr 8: "I think this is almost inevitable. If the vulnerabilities that Mythos found are truly of the level that Anthropic seems to be implying they are, they probably cleared this with the US gov before talking about it publicly. The NSA already knows which zero-days are about to expire" [2 replies, 145 likes, 11K views] Reply — spor (@sporadica) · Apr 8: "the US gov is like actively fighting the right now and designated them a supply chain risk so i doubt this unfortunately" [cut off]

Note from Claude Sonnet 5

Twitter discussion about a real-world security dynamic following the Claude Mythos release: a model capable of finding software vulnerabilities may push adversaries holding zero-days to "use them before they lose them" (i.e. before the vulns get patched due to AI-assisted discovery). Ties directly to the "autonomous exploit synthesis" note already in project memory about Mythos crash/exploit counts and to biosecurity/dual-use offense-defense balance themes.

twitter ai safety claude mythos zero-day cybersecurity offense-defense balance nsa