BTC $78,973.87 -0.87%
ETH $2,481.09 -0.04%
BNB $739.69 -1.03%
XRP $1.39 -1.25%
SOL $103.79 -2.17%
TRX $0.3340 -0.39%
DOGE $0.0900 +0.93%
ADA $0.2207 +0.94%
BCH $266.47 +3.97%
LINK $12.93 +4.71%
HYPE $85.49 -3.00%
AAVE $131.96 -0.92%
SUI $0.8134 +1.83%
XLM $0.1920 +3.98%
ZEC $1,161.45 -1.44%
BTC $78,973.87 -0.87%
ETH $2,481.09 -0.04%
BNB $739.69 -1.03%
XRP $1.39 -1.25%
SOL $103.79 -2.17%
TRX $0.3340 -0.39%
DOGE $0.0900 +0.93%
ADA $0.2207 +0.94%
BCH $266.47 +3.97%
LINK $12.93 +4.71%
HYPE $85.49 -3.00%
AAVE $131.96 -0.92%
SUI $0.8134 +1.83%
XLM $0.1920 +3.98%
ZEC $1,161.45 -1.44%

Review of Balancer's historical security incidents, resulting in a loss of 21 million dollars due to flash loans, front-end hijacking, and cross-protocol vulnerabilities

2025-11-03 17:11:05

The DeFi protocol Balancer is currently under attack, with losses exceeding $116.6 million across multiple chains, and the attack on Balancer is still ongoing.

According to the on-chain AI analysis tool CoinBob, the historical security incidents of Balancer are as follows:

  • June 2020 Flash Loan Attack: Attackers exploited a compatibility issue between the deflationary token (STA/STONK) and Balancer's smart contracts, repeatedly calling swapExactAmountIn to drain the liquidity pool, ultimately profiting $523,600.

  • August 2023 V2 Pool Vulnerability: The Balancer V2 pool suffered multiple flash loan attacks due to a code vulnerability, with total losses reaching $2.1 million. The team urgently paused the affected pools and advised users to withdraw their funds, but some funds that were not withdrawn in time were still exploited.

  • September 2023 Frontend Hijacking Attack: Hackers gained control of Balancer's frontend through BGP/DNS hijacking, tricking users into authorizing malicious contracts, resulting in a loss of $238,000. On-chain detective ZachXBT traced the funds to address 0x645710Af050E26bB96e295bdfB75B4a878088d7E.

  • 2023 Euler Incident Impact: Due to a vulnerability in Euler Finance, Balancer's bbeUSD pool suffered a loss of $11.9 million, accounting for 65% of the pool's TVL. The team took protective measures to limit liquidity withdrawals.

  • 2024 Velocore Attack Association: The Velocore vulnerability exploited Balancer-style CPMM pools, resulting in a loss of $6.8 million. Balancer's technical architecture was indirectly implicated due to cross-protocol integration.

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