ZachXBT Flags $520K Polymarket Exploit on Polygon, Team Says Funds Are Safe

ZachXBT flags $520K Polymarket exploit on Polygon, team says funds are safe

Blockchain investigator ZachXBT has highlighted a suspected security breach involving Polymarket, the world’s largest decentralized prediction market platform.

Polymarket Exploit Drains $520,000 via UMA Contract - The Blockopedia

Onchain investigator ZachXBT has flagged an apparent exploit of Polymarket’s $UMA CTF Adapter smart contract on May 22. Reports suggest more than $520,000 was drained, with funds flowing to an attacker wallet. This is a developing story. The $UMA CTF Adapter is the contract that Polymarket uses to settle prediction markets. It relies on UMA’s […] The post Polymarket Exploit Drains $520,000 via UMA Contract appeared first on The Blockopedia.

Polymarket Private Key Breach Drains $600K as Legacy Wallet Access Exposed

TLDR: Polymarket lost over $600K after attackers exploited an outdated backend operational key. Blockchain investigators tracked stolen funds moving through 16 wallets and ChangeNOW. User funds and market resolution contracts remained secure despite the Polygon wallet breach. The exploit exposed how legacy permissions and weak key rotation create major security risks. A private key compromise hit Polymarket on May 22, 2026, draining over $600,0…

Polymarket Confirms Internal Wallet Hack – User Funds Remain Safe

On June 14, 2026, Polymarket confirmed an internal wallet hack that sent ripples through the prediction market community. The breach, first flagged by on-chain analytics firm Bubblemaps, involved a series of suspicious automated transfers from an operational wallet tied to the platform’s rewards system. Polymarket moved quickly to clarify that user funds remain safe, attributing the incident to a private key compromise rather than any flaw in th…

Polymarket Exploit Reported As Above $600K Losses Traced To Private Key Issue

Polymarket has confirmed a security breach involving an internal private key linked to wallet top-ups, though the platform says no user funds or core smart contracts were compromised. The incident, connected to suspicious activity on the Polygon network, has raised fresh concerns around security practices within prediction market infrastructure.

Crypto Hack: Suspected Polymarket Attack Triggers $520K In Losses

Key Insights: Investigators linked the latest Polymarket crypto hack to a compromised internal wallet key. Polymarket developers said user funds and market resolution systems remain unaffected. The incident adds to a growing list of DeFi security breaches reported this month. Blockchain investigator ZachXBT reported a suspected exploit involving a Polymarket contract running on the Polygon network. Initial estimates suggest the attacker drained…