According to the source, Balancer reported a rounding logic bug affecting V2 Composable Stable Pools across multiple chains, with 5,041 osETH and 13,495 osGNO recovered and final loss figures pending, source: Balancer. The incident specifically references the V2 Composable Stable Pools class and the assets osETH and osGNO among the impacted, source: Balancer.

According to @EmberCN, StakeWise executed a contract call to reclaim 5,041 osETH worth about $19.3M from the Balancer exploiter, reducing the stolen tally from $117M to $98M, source: https://x.com/EmberCN/status/1985566230502420678. The exploiter has been swapping LST holdings into ETH and now holds more than half of the stolen assets in ETH, sources: https://x.com/EmberCN/status/1985566230502420678 and https://intel.arkm.com/explorer/entity/a1143094-5699-4e4a-a5ae-bca37094202c. Traders can monitor the listed address set for further ETH flows to assess potential order-book impact, source: https://intel.arkm.com/explorer/entity/a1143094-5699-4e4a-a5ae-bca37094202c.

According to @EmberCN, a hacker stole about 117 million dollars from Balancer across Ethereum, Base, OP, Sonic, Polygon, and Berachain, with most of the haul being ETH liquid staking tokens. According to @EmberCN, the attacker has begun converting liquid staking tokens to ETH, including a swap of 10 osETH for 10.55 ETH roughly 20 minutes before the post. According to the ARKM entity page shared by @EmberCN at https://intel.arkm.com/explorer/entity/a1143094-5699-4e4a-a5ae-bca37094202c, a set of suspected attacker addresses is available for monitoring. According to @EmberCN, traders can track on-chain flows from the ARKM listed addresses to manage execution and liquidity risk on ETH LST pairs across the affected chains.

According to the source, a social post reports that Balancer was hit by a $70M exploit draining osETH, WETH, and wstETH from liquidity pools, with BAL down about 5% and concerns about laundering flows (source: user-provided X post). Independent confirmation is not provided here; traders should verify any exploit disclosures via Balancer’s official X account and community forum, and corroborate large transfers on-chain via Etherscan before taking positions (source: Balancer official channels; Etherscan). Until confirmation, consider de-risking exposure to affected Balancer pools, tighten slippage on DEX routes touching osETH/WETH/wstETH, and monitor BAL spot-liquidity, futures funding, and open interest for stress signals (source: standard DeFi incident risk-management practices).

According to @PeckShieldAlert, Balancer has been drained of approximately $70.8 million in crypto, including 6,851.12 osETH (~$27M), 6,587.44 WETH (~$24.5M), and 4,259.84 wstETH (~$19.3M) (source: @PeckShieldAlert on X, Nov 3, 2025). The alert identifies osETH, WETH, and wstETH as the impacted assets on Balancer, enabling traders to assess direct exposure in related pools and positions following the report (source: @PeckShieldAlert on X, Nov 3, 2025). By dollar value, osETH is the largest share of the reported drain (~$27M), followed by WETH (~$24.5M) and wstETH (~$19.3M), which can inform the priority of risk checks for ETH-linked token markets (source: @PeckShieldAlert on X, Nov 3, 2025).

According to Lookonchain, the Balancer protocol appears to have been exploited with about USD 70.6M in assets transferred out. According to Lookonchain, the reported outflows include 6,587 WETH (~USD 24.46M), 6,851 osETH (~USD 26.86M), and 4,260 wstETH (~USD 19.27M). According to Lookonchain, based on these figures osETH accounted for roughly 38.1% of the transfers, WETH 34.7%, and wstETH 27.3%, indicating the scale and composition of the reported outflow.