Anthropic demonstrated that advanced AI models successfully identified and exploited vulnerabilities in blockchain smart contracts during controlled testing. The company tested 10 leading AI systems against 405 previously hacked contracts from 2020–2025, with agents exploiting over half and simulating theft of approximately $550.1M in value. When restricted to 34 contracts exploited after March 1, 2025, Claude Opus 4.5, Claude Sonnet 4.5, and GPT-5 generated working exploits worth $4.6M in simulated value, according to a recent study conducted with MATS and Anthropic Fellows.

The Federal Deposit Insurance Corporation will publish proposed stablecoin oversight regulations under the GENIUS Act before year-end. Acting FDIC Chair Travis Hill said the agency will first establish an application framework for issuers seeking federal supervision this month. A separate proposal on prudential requirements will follow in early 2026.

Prediction market platform Kalshi plans to tokenize thousands of event contracts on Solana, bridging its traditional off-chain order book with on-chain liquidity, according to a December 2, 2025 statement to CNBC. The integration enables crypto-native traders to buy and sell tokenized versions of betting contracts while leveraging blockchain infrastructure. Bettors will be able to trade tokenized wagers on Solana, with contracts functioning identically to regular platform offerings but with added blockchain-native benefits.

Yearn Finance has recovered approximately $2.4 million following a Sunday exploit that drained roughly $9 million from its yETH pools. An attacker exploited an unchecked arithmetic vulnerability to mint an excessive quantity of yETH tokens, enabling liquidity extraction from the protocol's Curve-based stableswap pools. Recovery efforts remain ongoing, with collaboration from security firms SEAL 911 and ChainSecurity.

The Bank of Israel announced enhanced regulatory oversight of stablecoins, with Governor Amir Yaron identifying them as a systemic force in global finance. The move came during a Tel Aviv conference where officials presented an updated timeline for the country's central bank digital currency project. The sector has reached a market capitalization exceeding $300 billion with monthly transaction volumes surpassing $2 trillion, according to Yaron.

An attacker exploited a vulnerability in Yearn Finance's legacy yETH product on November 30, 2025, minting approximately 235 trillion unauthorized tokens. The breach resulted in losses of roughly $9 million in ETH and liquid staking derivatives from liquidity pools. Around 1,000 ETH, valued at approximately $3 million, was transferred to Tornado Cash following the incident.

Yearn Finance suffered a security breach that drained approximately $9 million from its yETH infrastructure. Attackers exploited a vulnerability in the yETH token contract, enabling unlimited token minting without collateral and draining liquidity from a staked Ethereum derivatives pool. The protocol confirmed the yUSND pool and Nerite's vaults remained unaffected.

Yearn Finance reported a security breach on November 30 that resulted in approximately $9 million in losses. The attack targeted a vulnerability in a legacy yETH stableswap pool, allowing unauthorized token minting. Blockchain security firm PeckShield tracked roughly $3 million of the stolen funds to Tornado Cash, while the remaining $6 million remains in the exploiter's wallet.