A security researcher known online as killa has won a public Bitcoin challenge by using two critical PHP flaws to reach a test server, according to the supplied material. The winning run took 19.28 hours.
The prize pot was 0.02511679 BTC, worth $2,021.22 at the time of the win on October 25, 2026, at 15:47 UTC.
The researcher subsequently published a proof-of-concept (PoC) release, as indicated in the supplied title.