TechnicalAI glossary
Zero-day vulnerability
A security flaw still unknown to the software vendor: it had "zero days" to fix it, so no patch exists. Highly prized by hackers and states alike, these flaws sometimes sell for millions, and AI can now help both discover and patch them.
In other words
A backdoor whose existence even the homeowner is unaware of: impossible to lock it until someone discovers it.
Alyriaz articles that mention it
- Claude Mythos: the AI that terrifies hackers
Announced in early April 2026, Claude Mythos is not a conventional AI. It is a cybersecurity expert so powerful that Anthropic refuses to make it public. A plain-English explanation.