Hackers steal $3M from Polymarket partner

An external partner of the prediction market Polymarket was hacked on June 25, resulting in the theft of $3 million in customer funds, Decrypt reported. According to an investigation by blockchain analytics firm Bubblemaps, fewer than 15 user accounts were affected. The hackers stole pUSD, a stablecoin used within Polymarket, and subsequently swapped it for Ethereum (ETH). Polymarket stated it has resolved the vulnerability and is in the process of fully compensating affected users. The identity of the external partner has not been disclosed. Decrypt noted that the incident follows a separate security breach last month in which a private key for an employee wallet was leaked, leading to a $700,000 theft. This has raised concerns that security vulnerabilities linked to Polymarket's external infrastructure need to be addressed.