Bitcoin
A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge
CoinDesk·September 15, 2026·1 min read
A hacker exploited two software bugs on the Symbiosis DeFi bridge to turn 25 cents of bitcoin into 46 billion fake BTC tokens, over 2,000 times Bitcoin's maximum supply. Symbiosis puts preliminary losses at 9.97 BTC, highlighting critical vulnerabilities in cross-chain protocols.
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