CoinWorld News reports that Polymarket, a prediction market platform, denies recent reports that its customer data was leaked by hackers. The hackers posted on the dark web claiming to have stolen more than 300,000 records, including 10,000 complete user profiles. Polymarket said that this information has been publicly available online for a long time, calling the hackers’ allegations “entirely baseless.” The platform emphasized that all data can be accessed via its public API and on-chain data, rather than being leaked. Cybersecurity firm Hacken reported that in the first quarter of 2026, Web3 projects lost $482 million to hackers and scams. Polymarket also pointed out that the data claimed by the hackers was obtained through unlisted API endpoints and a misconfiguration. Several security experts expressed doubts, believing this may just be data parsing rather than a true database breach.

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