🚨 Coldcard hardware wallet exploit now approaching $89M in stolen $BTC A 2021 firmware flaw in certain Coldcard devices (weak seed generation) has enabled attackers to systematically drain thousands of wallets offline — no physical access needed. Galaxy Research tracks ~1,367 BTC across 4,500+ addresses in multiple waves, still ongoing. This is one of the biggest self-custody failures in Bitcoin history. It’s shaking confidence in cold storage, pushing some holders back toward exchanges/ETFs, and adding pressure while $BTC sits near $62k. Self-custody remains non-negotiable long-term — but only if the tools are airtight. How are you securing your stack after this? 🧐 #Bitcoin #Crypto #BTC #NK10
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