Bitcoin · Ethereum · Lombard Finance · The Block
Symbiosis confirms it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty
Compiled by KHAO Editorial — aggregated from 2 sources. See llms.txt for citation guidance.
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Cross-chain liquidity protocol Symbiosis said it has recovered approximately 15 BTC after an exploit targeted its Bitcoin Bridge.
Key facts
- The quantity of unauthorized tokens is more than 2,000 times bitcoin's maximum 21 million coin supply, but Blockaid said the apparent attacker managed to sell only approximately 4.39 WBTC
- Symbiosis has offered the attacker a white-hat bounty equal to 20% of the funds to claim through Sept. 13
- Cross-chain liquidity protocol Symbiosis said it has recovered approximately 15 BTC after an exploit targeted its Bitcoin Bridge
- Symbiosis says it has facilitated more than $10 billion in transaction volume since launching about five years ago
Summary
On Sept. 11, an attacker exploited a vulnerability in the bridge, according to Symbiosis, which did not give further details on the nature of the hack. Symbiosis has since restored bitcoin swaps through third-party partners Chainflip and THORChain, though its own Bitcoin Bridge remains paused. "W e are contacting every affected LP directly," Symbiosis wrote. Symbiosis said the approximately 15 BTC it recovered is now being held in a team-controlled multisig wallet.