On November 2025, BalancerV2 was exploited in a precision loss, resulting in approximately $120M in losses. That makes the BalancerV2 exploit the 7th largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the BalancerV2 Precision Loss Played Out
Exploit Class Applied to BalancerV2
The BalancerV2 incident on November 3, 2025 is classified as a Precision Loss. Rounding errors in token math let the attacker extract small but repeatable profits. In the full archive, BalancerV2 is 1 of 8 documented precision loss incidents.
BalancerV2 in Context
The $120M loss at BalancerV2 is the largest precision loss incident in our archive, ahead of KyberSwap (2023, $48M).
Prior Precision Loss Before BalancerV2
The nearest precision loss incident before BalancerV2 was Sonne Finance, 538 days earlier on May 14, 2024 ($20M lost). The same exploit class surfaced again within the precision loss attack surface.
Impact & Recovery for BalancerV2
BalancerV2 Loss Figure
The BalancerV2 exploit caused $120,000,000 in losses — a mega ($100M+) incident and the 2nd largest of 96 documented in 2025. This single incident represents 6.6% of all tracked losses that year.
Where BalancerV2 Sits Among Precision Loss Attacks
Ranked by loss size, BalancerV2 is the 1st largest of 8 precision loss incidents documented. That puts the BalancerV2 loss above the class average of $27.06M.
Timeline Since the BalancerV2 Incident
The BalancerV2 exploit occurred 5 months ago (162 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for BalancerV2
Public post-mortem / on-chain analysis for the BalancerV2 incident: view source.
FAQ
How much did BalancerV2 lose?
The BalancerV2 exploit in November 2025 resulted in $120,000,000 in losses — the 2nd largest of 96 DeFi incidents that year.
When did the BalancerV2 hack happen?
The BalancerV2 exploit was recorded on November 3, 2025 — 162 days ago.
What type of exploit hit BalancerV2?
The BalancerV2 incident is classified as a Precision Loss. Rounding errors in token math let the attacker extract small but repeatable profits.
How common is the Precision Loss pattern seen at BalancerV2?
Our archive contains 8 documented precision loss incidents. The BalancerV2 incident is one of them.
How does BalancerV2 compare to the largest Precision Loss attack?
The largest precision loss incident in our archive is KyberSwap (2023) at $48M. The BalancerV2 loss is $120M.
What are the study's findings on companies with significant cryptocurrency holdings?
Companies with significant cryptocurrency holdings exhibit a stronger positive correlation with sustainable performance during financial crises.
What findings does the study report regarding companies with substantial cryptocurrency holdings?
Companies with substantial cryptocurrency holdings show a stronger positive correlation with sustainable performance during financial crises.