Polymarket Fires CMO Over Fake-Trades Scandal | CoinDesk Daily

— Polymarket fired chief marketing officer Matthew Madaber following an internal investigation into a fake-trades scheme; the board determined he was hindering the company's push toward a potential IPO.

— CEO Shane Copland initially resisted the termination and reportedly threatened to fire legal team members before eventually accepting the separation agreement.

— Senator Richard Blumenthal is investigating payments Tether made to a consulting firm (Nexum) owned by Beau Hines, Tether's new U.S. operations head, while Hines was advising President Trump on crypto policy.

— Blumenthal flagged ethical and legal concerns over the arrangement, citing unusual terms reported by the Wall Street Journal.

— Ethereum developers postponed the Glamsterdam upgrade on the Hudi test network after security researchers identified a flaw that could make failed transactions permanent.

— No replacement upgrade date has been set; there is no evidence existing smart contracts are being actively exploited by the vulnerability.

— Monitor regulatory scrutiny around crypto industry leadership and consulting arrangements; potential conflicts of interest (such as serving dual roles in government and private crypto firms) may trigger congressional investigation or enforcement action.

— Track Ethereum protocol upgrades and security fixes closely; delays in network improvements due to discovered flaws can affect application reliability and smart contract risk assessment.