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App users follow approval prompts, while integrations must keep CTF support and add V2 identifiers and permissions. The post Polymarket’s upgrade won’t automatically move existing bets to new contracts appeared first on CryptoSlate.

The European Central Bank has summoned banks to a Tuesday session over cybersecurity risks posed by Anthropic’s Claude Mythos and other advanced AI models. Frank Elderson, vice-chair of the ECB’s supervisory board, said the regulator wants banks to...

The world’s largest prediction market was exploited for $520K, but it has bounced back from the hack. On May 22, 2026, on-chain sleuth ZachXBT released his investigation of the hack in which he showed that Polymarket’s UMA CTF Adapter contract on...

The post Polymarket Hack Live: $660,000 Stolen From World’s Largest Prediction Market appeared first on Coinpedia Fintech News An attacker is actively draining funds from Polymarket’s UMA CTF Adapter contract on Polygon in a live exploit first...

BitcoinWorld Polymarket Confirms User Funds Safe After Exploit, Core Infrastructure Unaffected Polymarket, the leading decentralized prediction market platform, has moved to reassure users following a security incident involving its UMA CTF adapter...

The post Polymarket Hack Suspected After $520K Exploit on Polygon appeared first on Coinpedia Fintech News Blockchain investigator ZachXBT flagged a suspected attack targeting Polymarket on the Polygon network. The exploit reportedly affected the...

BitcoinWorld Polymarket’s UMA Adapter Contract Exploited for $520K on Polygon, ZachXBT Reports A UMA CTF adapter contract linked to the prediction market platform Polymarket has been exploited on the Polygon network, resulting in a loss of...

On-chain investigator ZachXBT issued a community alert flagging an apparent exploit of Polymarket’s UMA CTF Adapter. The UMA CTF Adapter is the smart contract that lets Polymarket’s prediction markets settle using UMA’s Optimistic Oracle According...

Polymarket will take its exchange offline for roughly one hour on April 22. The downtime deploys V2, a full overhaul of its trading contracts, order book, and collateral system. The upgrade replaces V1 permanently. Every API integration and SDK...

Anthropic’s Claude Mythos Preview has become the first AI model to complete a full simulated corporate network attack, according to new evaluations from the UK’s AI Security Institute (AISI). The findings, published days after the model’s April 7...