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Balancer DeFi Protocol Exploit Results in Over $128 Million Loss

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The Balancer DeFi protocol suffered a significant exploit on November 3, 2025, resulting in over $128 million in losses. The attack targeted the v2 pools, specifically the Compostable Stable Pools, at 7:48 AM UTC. The exploit is believed to have originated from a precision rounding error in the Vault’s swap calculations or improper authorization and callback handling. The incident does not impact other Balancer pools, including V3. The Balancer team is working with security researchers to understand the issue and has warned users to be cautious against potential scams or phishing attempts. The protocol had a market cap of $65 million before the incident. The hack is one of the largest cryptocurrency heists in 2025, with North Korean hackers identified as the greatest threat to DeFi entities.

Timeline

  1. 03.11.2025 23:53 1 articles · 7d ago

    Balancer DeFi Protocol Exploit Results in Over $128 Million Loss

    On November 3, 2025, the Balancer DeFi protocol suffered a significant exploit, resulting in over $128 million in losses. The attack targeted the v2 Compostable Stable Pools at 7:48 AM UTC. The exploit is believed to have originated from a precision rounding error in the Vault’s swap calculations or improper authorization and callback handling. The incident does not impact other Balancer pools, including V3. The Balancer team is collaborating with security researchers to understand the issue and has warned users to be cautious against potential scams or phishing attempts.

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