A Columbia University study has found that wash trading accounted for nearly 25% of all transactions on Polymarket over the past three years. Sports markets showed the highest prevalence at 45% of volume, while crypto markets recorded the lowest at 3%. The decentralized prediction platform achieved $2.59 billion in trading volume in October and secured $205 million in funding across two rounds.

Google has integrated live prediction market odds from Polymarket and Kalshi into Google Search and its redesigned Google Finance platform. Users can now access real-time, crowd-sourced probability forecasts on major global events through natural language queries. The move marks a significant step toward mainstream adoption of decentralized forecasting tools.

Google Finance will integrate live data feeds from prediction market platforms Polymarket and Kalshi in the coming weeks, the company announced Thursday. Users will be able to search future events and view market-implied probabilities directly in results. Historical odds will appear alongside current pricing, enabling queries on topics such as projected GDP growth with real-time data from both platforms.

Gaming activity on Web3 platforms reached 27.9% of total on-chain engagement in October, the highest share recorded this year. NFT trading volume increased 30% to $546 million across 10.1 million transactions. Decentralized finance total value locked declined 6.3% to $221 billion amid market liquidations and a $93 million loss at Stream Finance.

Fireblocks, Polygon Labs, Mysten Labs, the Monad Foundation, the Solana Foundation, the Stellar Development Foundation, and the TON Foundation launched the Blockchain Payments Consortium on November 6, 2025. The initiative aims to establish unified technical and compliance standards for cross-chain stablecoin transactions. The founding members collectively process over $10 trillion in annual stablecoin transaction volume.

Unauthorized access to cryptocurrency exchange accounts requires immediate action to prevent permanent asset loss. Security protocols include securing all access points, documenting transaction details, and reporting incidents to exchanges and authorities. Blockchain tracking tools can trace stolen funds before they enter mixing services.

Coinbase submitted recommendations to the U.S. Treasury on November 5, 2025, regarding implementation of the GENIUS Act. The exchange called for precise regulations that foster stablecoin innovation while protecting consumers. Coinbase emphasized that payment stablecoins should be treated as cash equivalents for tax purposes and warned against broad interpretations of the Act's interest prohibition provisions.

Balancer issued a preliminary incident report on the November 3 exploit that drained over $128 million from Composable Stable Pools across nine networks. The protocol identified a rounding flaw in its v2 vault's batchSwap feature as the root cause, which attackers exploited to manipulate pool balances and extract value. Balancer v3 and other pool types remained unaffected.