Symbiosis Exploit Exposes Bitcoin Bridge Risk without Touching Bitcoin Itself

Symbiosis BTC Bridge: Why the Mint Is Not the Loss

The BridgeV2 receive path printed a vast unbacked syBTC balance. Realized cash-out and a safe BTC reopen need different proof. Explainer Symbiosis halted Bitcoin routing on September 11 after BridgeV2 accepted an abnormal signed receive and minted a synthetic BTC balance far larger than any pool could absorb. The attacker converted about 4.39 WBTC on […]

Symbiosis halts BTC bridge after exploit, spotlighting cross-chain risk

Symbiosis shut down its native Bitcoin bridge on Friday after an attacker exploited its BridgeV2 contract to mint a huge amount of unbacked synthetic BTC. Yet the attacker managed to extract only about $336,000 in real value. The importance of that gap cannot be overlooked. It is important to emphasize that Bitcoin’s security was not compromised, rather it is the infrastructure by which BTC crosses into DeFi that proved to be vulnerable. This in…

Symbiosis exploit exposes Bitcoin bridge risk without touching Bitcoin itself

Symbiosis shut down its native Bitcoin bridge on Friday after an attacker exploited its BridgeV2 contract to mint a huge amount of unbacked synthetic BTC. Yet the attacker managed to extract only about $336,000 in real value. The importance of that gap cannot be overlooked. It is important to...

Symbiosis exploit mints billions in phantom syBTC on BSC

A Symbiosis exploit drained about $336,000 in WBTC on BNB Chain and briefly minted a nominal $46.1 billion. Here is what it means for crypto risk.