Balancer v2 Exploit Results in $120 Million Loss

Balancer v2 Exploit Results in $120 Million Loss

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by Kenji Takahashi

a year ago

Made with AI


On November 3rd, the Balancer v2 protocol suffered a significant exploit, leading to estimated losses of around $120 million. This incident has raised concerns within the DeFi community regarding the security of smart contracts and the vulnerabilities that can be exploited by malicious actors. According to the results published in the material, the implications of this breach could have far-reaching effects on the future of decentralized finance.

Exploit Traced to Precision Loss Flaw

The exploit was traced back to a precision loss flaw in the integer fixed-point arithmetic used for calculating scaling factors in Composable Stable Pools. According to an analysis by the SlowMist security team, this flaw resulted in minor but persistent price discrepancies during token swaps. Attackers took advantage of this by employing the batch swap function, allowing them to execute multiple operations in a single transaction, thereby amplifying their gains.

Balancer Team's Response

In response to the incident, the Balancer team has been proactive in collaborating with cybersecurity partners to recover or freeze portions of the stolen funds. This incident highlights the ongoing challenges in ensuring the security of decentralized finance protocols and the need for continuous improvements in smart contract auditing and risk management.

In light of recent security concerns in the DeFi space, the iMe Wallet has launched its latest version, iMe Wallet 20, which introduces advanced features for managing digital assets. For more details, visit read more.

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