ZachXBT Flags Polymarket Admin Wallet Exploit on Polygon, Loss May Exceed $600,000

On May 22, 2026, on-chain investigator ZachXBT said a Polymarket admin address on Polygon appeared to be compromised, initially estimating losses at about $520,000. Later updates suggested the stolen amount may have surpassed $600,000, with the attacker splitting funds across 15 addresses. Polymarket’s Shantikiran Chanal said the team is investigating while claiming user funds and market resolutions remain safe.