Balancer V1: 2020 bug drains $234,000 pool on Ethereum

An immutable bug in Balancer V1 enabled the drainage of $234,000 through nested flash loans.

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The fact

The unmodifiable code makes any fix impossible since its 2020 discovery.

The incident reignites debates on the security of outdated smart contracts.

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Auto-synthesis from 1 media source · identified on September 1, 2026