《Market Chatroom》 —— About $38M stolen from cold wallets ❗️ Think putting your BTC in a cold wallet makes it 100% safe? Just came across some chilling news. Due to a critical vulnerability in the random number generator (RNG) of the Coldcard Mk3 and early firmware versions, the private key entropy of about 500 cold wallets was only 72 bits—far below the industry standard of 128 bits. The result? ⚠️ Hackers brute-forced these wallets directly. ⚠️ Approximately 594.48 BTC (around $38M) was drained in a short period. ⚠️ Over 500 wallets were wiped out almost simultaneously. Many people have always believed: "Having the private key in your own hands makes it the safest asset in the world." But this incident reminds us once again: The real risk doesn’t always come from hackers—it might come from the wallet you trust. For those managing large amounts of assets, I’ve always adhered to one principle: Don’t put all your assets in one wallet. Don’t put all your assets on one device. And never believe that any single security solution is 100% foolproof. Just like trading requires risk diversification, asset management also requires risk diversification. So, I want to ask everyone: If you held $10M worth of BTC, how would you store it? A: Put it all in one cold wallet. B: Spread it across multiple cold wallets. C: Use a combination of hot and cold wallets. D: Use a multi-signature wallet. Feel free to share your strategy in the comments, and let us know about any pitfalls you’ve encountered so others can avoid paying the same price.