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Coldcard Exploit Spreads to Fourth Wave With 462 Additional Victims

A flaw in the hardware wallet's random number generator has now affected over 1,367 bitcoins across suspected four attack waves and thousands of addresses.

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Galaxy Research head Alex Thorn flagged on Monday that coordinated attacks targeting Coldcard users are entering a fourth phase. The ongoing exploit of the device's random number generator has been linked to 1,367.05 bitcoin held across 4,585 addresses in three previously confirmed waves. Confirmation of a fourth wave would extend the scope of the breach further.

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