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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.

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Published in the last two hours. The story has cross-source confirmation.

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.

Why this matters

Bitcoin is showing up inside the DeFi theme, so this story is worth tracking for follow-through rather than treating it as a one-off headline.

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