Polymarket is a organization tracked across 21 threat clusters and 52 intelligence report mentions on ThreatCluster. First observed November 11, 2025; most recent activity July 9, 2026.
On July 1, 2026, security firm SlowMist identified a fake trading bot on GitHub designed to spread malware targeting Polymarket users and DeFi developers. The bot, named 'polymarket-arbitrage-bot', was promoted as a…
On May 4, 2026, onchain investigator ZachXBT reported that Polyarb, a site posing as a prediction market platform, is operating an active wallet drainer. This malicious tool disguises a harmful smart contract approval…
In June 2026, the crypto sector faced 40 major hacking incidents, leading to losses of $75.87 million. The SecondFi wallet, part of the Cardano ecosystem, was notably compromised, with attackers transferring…
On May 20, 2026, GitHub confirmed a significant security breach involving a poisoned Visual Studio Code (VS Code) extension that compromised an employee's device. The attack, attributed to the TeamPCP hacking group,…
On May 24, 2026, StablR's stablecoins, EURR and USDR, lost their pegs following an exploit that allowed an attacker to mint approximately $10.4 million in unbacked tokens. The breach was attributed to a compromised…
On July 6, 2026, the DeFi platform Summer.fi was exploited, resulting in the theft of approximately $6 million in DAI. The attack was detected by Blockaid, which identified an exploit involving a flash loan of $64.8…
On October 10, 2025, a significant crypto market crash occurred, resulting in $19 billion in liquidations. The collapse was triggered by a structural vulnerability known as the 'Oracle Loop' during a transition period…
On June 25, 2026, Polymarket confirmed a security breach that led to the theft of approximately $3 million from fewer than 15 user accounts. The attack was executed through a compromised third-party vendor, which…
Polymarket, a decentralized prediction market platform, faced allegations of a data breach after a hacker known as xorcat claimed to have extracted over 300,000 records, including personal user data and exploit code,…
On May 22, 2026, Polymarket experienced a security incident resulting in over $520,000 drained from its UMA Conditional Token Framework (CTF) Adapter on the Polygon network. Blockchain investigator ZachXBT flagged…