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A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge

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A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge

Two software bugs allowed the attacker to create more than 2,000 times Bitcoin’s maximum supply in unbacked syBTC. Symbiosis puts preliminary losses at 9.97 BTC.

A hacker turned 25 cents of bitcoin into 46 billion fake BTC tokens on a DeFi bridge

Source：CoinDesk

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Source：https://www.coindesk.com/tech/2026/09/15/a-hacker-turned-25-cents-of-bitcoin-into-46-billion-fake-btc-tokens-on-a-defi-bridge