This is how a lot the attacker has siphon off the platform to this point.
Well-liked on-chain sleuth ZachXBT warned earlier at present that an admin tackle of Polymarket appeared to have been compromised on the Polygon blockchain.
At first, he famous that the stolen quantity was round $520,000. Nonetheless, follow-up updates from Bubblemaps and Lookonchain defined that the precise quantity might need surpassed $600,000.
2/ @zachxbt was the primary to share the exploit and determine that it was a Polymarket UMA CTF adapter contract.
The attacker has already cut up the funds throughout 15 addresses.
Extra updates quickly.
Attacker tackle: https://t.co/G9sNVvunkT
— Bubblemaps (@bubblemaps) May 22, 2026
The attacker cut up the funds throughout 15 addresses after exploiting Polymarket’s UMA CFT adapter contract.
Polymarket’s Shantikiran Chanal acknowledged the assault on X, saying that the crew is “conscious of the safety studies linked to rewards payout” earlier than including that “person funds and market resolutions are protected.”
Chanal additionally defined that the crew is investigating whether or not every other inside secrets and techniques could have been affected and that they’re rotating their backend providers.
