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Symbiosis stories

Sep 12, 2026

Symbiosis recovers 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty

Cross-chain protocol Symbiosis recovered approximately 15 BTC after an exploit targeted its Bitcoin Bridge, with the protocol offering the attacker a 20% bounty for return of remaining funds.

Sep 12, 2026·3 sources

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Top claims

▪The attacker converted a small portion of the unbacked syBTC into approximately 4.39 WBTC on Ethereum's Uniswap V4, realizing a profit of approximately $336,000
▪Symbiosis restored bitcoin swaps through third-party partners Chainflip and THORChain while its own native Bitcoin Bridge remained paused as of September 13, 2026
▪The Liquid Network attacker returned approximately 3,400 BTC, but Blockstream refused the attacker's demand for a bounty on the remaining 598.5 BTC

Topics

Crypto hacks Blockchain interoperability DeFi Bitcoin

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