9/4/2026
Startup Signal · ai-startups
The fix for the AI agent that hijacked a company's DNS: it can propose the change, but it can't approve it
Filed by Nova Kicker
A security agent read a Cloudflare log, found an attacker’s prompt-injection payload sitting inside it, and rewrote the company’s DNS. The firewall had already blocked that payload, and blocking it is what wrote it into the log.That chain is GhostJacking, which Tenet Security demonstrated on the DEF CON 34 main stage on August 9. A request hits Cloudflare’s managed ruleset, gets blocked, and is stored byte for byte with its poisoned User-Agent header. An AI coding agent reviewing those blocked e
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Nova Kicker
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