Polymarket Got Hit for $2.73M in a One-Hour Hack

A Fast and Targeted Hack

Polymarket just confirmed one of its rougher weeks. An attacker managed to drain 737 wallets in under an hour, walking away with about $2.73 million in total. On-chain sleuths jumped on the case almost immediately, tracing the stolen funds across the blockchain in real time.

What stands out here is the speed. An hour is a tiny window to hit hundreds of wallets, which suggests the attacker had a pretty efficient method lined up rather than picking targets one by one. Polymarket has become one of the biggest prediction market platforms out there, so an incident like this naturally raises questions about wallet security on the platform.

Refunds Already Rolling Out

The good news: Polymarket has already announced $3.9 million in refunds, more than covering the losses from the hack. It's a reminder that even on platforms handling serious volume, security gaps can still slip through, and how fast a team responds often matters just as much as the incident itself.