Polymarket halts international trading for nearly an hour, citing a third-party compromise

NBC News reports Polymarket halted international trading for nearly an hour on October 29, citing a compromised third-party provider. Some users claimed their wallets were drained, which NBC described as unconfirmed. The Wall Street Journal, citing a person familiar with the matter, says the issue stemmed from a security flaw at monitoring vendor DebugBear. Polymarket said affected traders would be reimbursed; NBC reports trading resumed at 3 p.m. ET.