🚨🚨🚨 Coldcard firmware flaw drains ~$70M in $BTC — devices never touched Galaxy Research: Weak seed generation on certain Coldcard wallets let an attacker reconstruct private keys offline and sweep 1,082+ BTC from nearly 1,200 wallets in ~41 minutes on July 30. This hits the core promise of hardware self-custody. Expect more questions around seed entropy and a possible push toward ETFs/institutional custody. Are you verifying how your seeds were generated? Diversify now? 🧐 #Bitcoin #Crypto #SelfCustody
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