Solo Bitcoin miner nets $200,000 as Coldcard hardware wallet drains rocks sentiment

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• A Coldcard firmware flaw let hackers drain $70 million in Bitcoin in 41 minutes, with losses now topping $88 million techspot.com
• Bitcoin hardware wallet maker destroys some inventory after more than $88 million stolen therecord.media
• Coldcard wallet losses may near $114 million as possible fourth sweep emerges coindesk.com
• Coldcard’s 5-year flaw reveals hardware wallet testing gap: Kraken’s security chief cointelegraph.com