Yearn yETH was attacked, with approximately $3.00M USD worth of ETH flowing into Tornado Cash.

ChainCatcherNov 30, 2025
#DeFi ETH-5.31%TORN-3.50%YFI-6.67%
Yearn Finance's aggregated staking token product, yETH, was attacked. The attacker exploited a vulnerability to mint yETH almost infinitely, depleting the pool's assets in a single transaction.

On-chain data shows that the attacker then transferred approximately 1,000 $ETH (approximately $3.00M) to the mixing protocol Tornado Cash. Several contracts used for the attack self-destructed after the transaction. The exact scale of the losses is currently unknown. Yearn has stated that it is investigating the incident and that its V2 and V3 Vaults were not affected.

[ChainCatcher]

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Yearn yETH was attacked, with approximately $3.00M USD worth of ETH flowing into Tornado Cash.

ChainCatcherNov 30, 2025
#DeFi ETH-5.31%TORN-3.50%YFI-6.67%
Yearn Finance's aggregated staking token product, yETH, was attacked. The attacker exploited a vulnerability to mint yETH almost infinitely, depleting the pool's assets in a single transaction.

On-chain data shows that the attacker then transferred approximately 1,000 ETH (approximately $3.00M) to the mixing protocol Tornado Cash. Several contracts used for the attack self-destructed after the transaction. The exact scale of the losses is currently unknown. Yearn has stated that it is investigating the incident and that its V2 and V3 Vaults were not affected.

[ChainCatcher]

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