Monitoring
Dashboard/Crypto Hacks/Balancer V2
CRITICALEthereum, Arbitrum, Base, Polygon, Sonic, Optimism·Rounding Error·#31 all-time

Balancer V2

$128.0M stolenMonday, November 3, 2025 · 311 days ago

Corpus updated 2026-09-10

Other recorded incidents at Balancer V2

DefiLlama records 3 separate incidents under this name.

Balancer V2 — 2023
Ethereum$800K
Balancer V2 — 2023
Ethereum$238K

Situation Summary

11/3/2025 — EXPLOIT DETECTED

$128.0M drained from Balancer V2 on Ethereum, Arbitrum, Base, Polygon, Sonic, Optimism.

TECHNIQUE: ROUNDING ERROR

Social Reactions

@ZachXBT coverage

On-chain investigator · Often first to report

View on 𝕏 →

Community discussion

Live search for “Balancer V2hack” on 𝕏

View on 𝕏 →

DefiLlama incident data

Full database of DeFi hacks and exploits

View →

Related — Rounding Error Exploits

AES
12/7/2022$62K
Merlin
5/26/2021$550K
KyberSwap Elastic
11/22/2023$48.0M
Bunni V2
9/2/2025$8.4M
Abracadabra Spell
1/30/2024$6.5M

Nearby in the record

Garden
10/30/2025$11.4M
Moonwell Lending
11/4/2025$1.0M
402bridge
10/27/2025$18K
DIMO
11/7/2025$40K
DoodiPals
10/21/2025$171K
DRLVaultV3
11/10/2025$100K
← All incidents

Source: DefiLlama · 1262 recorded incidents · data as of 2026-09-10 05:04 UTC