Bitcoin BTC$64,423.53 rose 1.6% over the last 24 hours, climbing as high as $64,160 to the highest since July 31 before retreating. The rebound followed a selloff spurred by an exploit that targeted a cold wallet over the weekend and bitcoin sales by the world’s largest corporate holder .Roughly 1,816 BTC, about $114 million, was removed from more than 5,200 addresses since July 30, according to researchers tracking the cold wallet hack, which exploited a flaw in the Coldcard wallet’s firmware.In addition, Strategy (MSTR) sold 1,638 bitcoin between July 27 and Aug. 2 at an average price of $63,957, its…

In brief Ledger says the Coldcard exploit is a warning for the hardware Bitcoin wallet industry but says its own devices were not affected. The company argues independently certified hardware random number generators are essential for securely creating wallet recovery phrases. Ledger says AI is accelerating vulnerability discovery and forcing security teams to defend at machine speed. Hardware wallet maker Ledger says the recent Coldcard exploit should serve as a warning for the cryptocurrency industry.According to Ledger CTO Charles Guillemet, the incident exposed weaknesses in how some devices, in this case hardware cryptocurrency wallets, generate cryptographic randomness while showing how…

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