Every story we've covered involving smart-contract-bugs.
An attacker used a 330-satoshi (about $0.25) deposit to mint roughly 46.1 billion unbacked syBTC tokens on Symbiosis’ Bitcoin Bridge by submitting 12 bogus deposits across BNB Chain, Ethereum and Rootstock. The exploit combined two software bugs — one that gave the attacker administrator privileges and another that treated a negative fee as an additive — and Symbiosis estimates preliminary losses at 9.97 BTC while taking the bridge offline.
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