# Polymarket Hack Revised Upward to $3.1 Million as Smaller Exploits Pile Up

The prediction-market platform raised its loss estimate days after promising full refunds, while researchers recorded a series of smaller thefts.

- Published: 2026-06-28T10:27:45.329Z
- Canonical: https://polylog.news/crypto/2026-06-28/polymarket-hack-revised-upward-to-3-1-million-as-smaller-exp
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/markets/2026/06/27/polymarket-hack-updated-to-usd3-1-million-days-after-the-platform-promised-users-full-refunds), [DeFiHackLabs](https://github.com/SunWeb3Sec/DeFiHackLabs/commit/234f860900da74eb236824d6ab1ed172b5026c82), [DeFiHackLabs](https://github.com/SunWeb3Sec/DeFiHackLabs/commit/7ebb7aef8d4a6d9a25e0e85abf8ac34df1fb5a8a)

Polymarket, the prediction-market platform, revised the loss from a recent hack upward to $3.1 million, according to CoinDesk, days after it told users it would fully reimburse them. The platform is separately under investigation in connect…

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