After reading about the theft of LuBian, I am truly shocked.

127,400 BTC were stolen by hackers, now worth 14.5 billion USD. This is not a small project; it was once among the top ten mining pools in the world, accounting for 6% of the total network hash rate. And what happened? Due to poor security of the private keys, it was stolen four years ago, and only now has it been discovered.

Even more absurd is that LuBian spent 1.4 BTC to leave a message pleading with the hackers—could you return some of it? The reality is heart-wrenching.

This hacker hasn't moved the coins either, becoming the 13th largest holder of BTC, even surpassing the Mt.Gox hacker. Who knows when they might suddenly act, could it stir up market turbulence again?

One can only say that no matter how advanced the blockchain, if security isn't in place, it's all in vain. Whether it's the project team, mining pools, DeFi protocols, or wallets that you and I use, if the private key isn't well protected, it's like running naked.