Ethereum

Cryptocurrency markets posted their steepest monthly decline since February, with centralized exchange trading volumes falling to $1.59 trillion. U.S. spot Bitcoin ETFs recorded $3.48 billion in net outflows during November. Bitcoin dropped below $86,000 on December 1, triggering over $564 million in long position liquidations amid Bank of Japan rate hike speculation.

U.S. spot bitcoin exchange-traded funds recorded $3.48 billion in net outflows during November, the steepest monthly decline since February. Spot ether ETFs posted $1.42 billion in exits, marking their largest monthly outflow to date. The withdrawals followed bitcoin's rally to record highs and coincided with year-end portfolio adjustments.

Bitcoin gained nearly 6% after a sharp decline, with the sustainability of the rebound depending on macroeconomic data and blockchain developments this week. Federal Reserve Chair Jerome Powell speaks Tuesday, followed by U.S. employment reports Wednesday through Friday. Ethereum's Fusaka upgrade deploys Wednesday, modifying blob capacity and data costs for Layer 2 rollups.

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.

Yearn Finance's yETH product suffered an exploit on November 30, 2025, enabling unlimited token minting that drained Balancer pools. Attackers extracted approximately 1,000 ETH valued at $3 million and transferred the funds through Tornado Cash, according to blockchain journalist Colin Wu. The platform confirmed its V2 and V3 Vaults remained unaffected and operational.

Yearn Finance confirmed an exploit targeting its yETH liquid staking token pool on November 30, 2025. An attacker exploited an infinite-mint vulnerability to drain millions in liquid staking tokens, routing approximately 1,000 ETH (around $3 million) to Tornado Cash. The protocol stated that Yearn Vaults V2 and V3 remain unaffected.

Bitcoin dropped to $86,053 during Asian trading on Monday, declining 5.4%, while Ethereum fell 6.1% to $2,819. Data show approximately $608 million in cryptocurrency liquidations occurred over the past 24 hours, with long positions accounting for more than $535 million of the total.

Yearn Finance's yETH vault suffered a security breach that resulted in approximately $3 million worth of ETH being stolen. The attacker exploited a smart contract vulnerability to mint excessive tokens and drain the liquidity pool. Other Yearn vaults remained unaffected, with V2 and V3 operations continuing normally.

Yearn Finance's yETH staking token was exploited on December 1, resulting in approximately $3 million in ETH losses. The attacker minted tokens without authorization and transferred 1,000 ETH to Tornado Cash. Yearn confirmed its V2 and V3 Vaults remain secure and unaffected by the breach.

Yearn Finance's yETH product was exploited, resulting in approximately $3 million worth of ETH transferred to Tornado Cash. The attacker minted an excessive amount of yETH tokens through a vulnerability, draining liquid staking tokens from the pool in a single transaction. Yearn confirmed the incident affected only the yETH LST stableswap pool, with Yearn Vaults remaining secure.