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Morning Edition · Monday, September 14, 2026Published at 1:49 AM EDT · New York
Symbiosis Bridge Attacker Minted 46 Billion Fake Bitcoin Tokens and Realized About $336,000
The protocol recovered roughly 15 BTC into a team multisig, offered a 20% white-hat bounty that expired on September 13, and has not yet set compensation terms for liquidity providers.
An attacker exploited the BridgeV2 contract of the cross-chain protocol Symbiosis on September 11 and minted roughly 46.1 billion syBTC, the wrapped representation of Bitcoin on the bridge, without depositing the Bitcoin that is supposed to…
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Bridge and Mint Exploits Sustain Heavy DeFi Losses
Over 3-6 months, recurring bridge proof-validation and unauthorized-mint exploits keep monthly DeFi losses elevated, including drains of deprecated contracts.
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