June 29, 2020 - Balancer pools drained of more than $450,000

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Two multi-token pools on DeFi platform Balancer were drained of ~$450,000 on June 29. The attacker conducted the attack in two separate flashloan transactions by draining one liquidity pool until close to zero, and then using that pool to attack another pool and draining the ETH for cheap.  The attacker drained 601.3 ETH, 11.36 WBTC, 22,593 LINK, and 60,915 SNX. Loss is estimated at around $450,000 at the time of the attack. Source