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Yearn Finance Experiences Fourth Exploit via Flash Loan Attack

First seen 17 Dec 2025, 15:54 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

Yearn Finance has been targeted in its fourth exploit, where a flash loan attack compromised a legacy v1 vault. The attack, identified by blockchain security firm PeckShield, highlights vulnerabilities in outdated DeFi contracts. The incident resulted in significant financial losses for the protocol.

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