“Hacker Exploits DeFi Bridge Flaws to Mint $46 Billion in Fake Bitcoin Tokens, Symbiosis Re” — what this page in the network covers. A critical security breach on the Symbiosis cross-chain DeFi bridge has enabled an unknown hacker to exploit two software vulnerabilities and generate over... A critical security breach on the Symbiosis cross-chain DeFi bridge has enabled an unknown hacker to exploit two software vulnerabilities and generate over 2,000 times Bitcoin’s maximum supply—more than 21 million in unbacked syBTC tokens.
The attack, which leveraged a flaw in the bridge's token minting mechanism, allowed the attacker to convert just 25 cents worth of BTC into a staggering $46 billion in synthetic Bitcoin (syBTC), highlighting severe risks in decentralized finance infrastructure. Symbiosis, the platform behind the bridge, has confirmed preliminary losses amounting to 9.97 BTC, though the full financial impact remains under investigation. For the complete material, the listing points back to the source inside the network.