Looking back at this Bitcoin private key security incident, it truly is emotional. In 2025, the US government suddenly confiscated $1.5 billion worth of Bitcoin, which actually stemmed from a vulnerability in a random number generator years ago. At that time, no one knew about the weakness of the Mersenne Twister algorithm, and ultimately, it laid the groundwork for such a major disaster.

Thinking about the rise of Lubian mining pool back then, which took just a few months to account for 6% of the global hash rate, who would have thought that behind it was such a shocking case? Even more frightening, during the large-scale fund withdrawals at the end of 2020, the industry surprisingly did not raise any alarms. $3.7 billion just quietly transferred away, and people initially thought it was just high-position cash-out.

This incident serves as a wake-up call. Randomness is crucial to blockchain security, but many people have overlooked this point. Not only Lubian, but later Trust Wallet and Libbitcoin also experienced similar issues. The lesson is that no matter how small the detail, it must not be overlooked. "If it’s not your wallet, it’s not your money"—this old saying now must be supplemented with "If it’s not truly random, it’s not secure."

Hopefully, this event will raise the entire industry's awareness. Whether it's wallet development or mining pool operation, the importance of random number generation must be emphasized. After all, in this field, a small oversight can lead to a big disaster. We elders have witnessed too many lessons; we absolutely cannot let history repeat itself.