Yearn Finance's yETH product was hacked, with approximately $3.00 million in ETH stolen.

TechFlowDec 1, 2025
#DeFi ETH-5.30%TORN-3.50%YFI-6.55%
On December 1, The Block reported that Yearn Finance's yETH product, an index token that aggregates liquid staking tokens, was hacked on November 30. The attacker was able to mint a near-infinite number of yETH tokens through a carefully designed vulnerability, draining the pool in a single transaction.

Blockchain data shows that approximately 1,000 $ETH (worth approximately $3.00 million) has been transferred to the mixing service Tornado Cash. Prior to the attack, the total value of the yETH pool was approximately $11.00 million, and the total loss is currently unclear.

Yearn Finance has confirmed on social media that it is investigating the incident and stated that its Vault products (V2 and V3 versions) were not affected. It is worth noting that the protocol suffered a similar attack in 2021, which resulted in a $11.00 million loss in value.

[深潮 TechFlow]

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Yearn Finance's yETH product was hacked, with approximately $3.00 million in ETH stolen.

TechFlowDec 1, 2025
#DeFi ETH-5.30%TORN-3.50%YFI-6.55%
On December 1, The Block reported that Yearn Finance's yETH product, an index token that aggregates liquid staking tokens, was hacked on November 30. The attacker was able to mint a near-infinite number of yETH tokens through a carefully designed vulnerability, draining the pool in a single transaction.

Blockchain data shows that approximately 1,000 ETH (worth approximately $3.00 million) has been transferred to the mixing service Tornado Cash. Prior to the attack, the total value of the yETH pool was approximately $11.00 million, and the total loss is currently unclear.

Yearn Finance has confirmed on social media that it is investigating the incident and stated that its Vault products (V2 and V3 versions) were not affected. It is worth noting that the protocol suffered a similar attack in 2021, which resulted in a $11.00 million loss in value.

[深潮 TechFlow]

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