A bizarre incident that has sparked heated discussions in the crypto world has recently come to light - regarding an accidental Private Key security test.

Here's the thing: Wang Chun, a co-founder of a leading mining pool, decided to conduct a bold "phishing test" last year because he suspected that the Private Key might have been leaked. He directly transferred 500 Bitcoins to an address that he suspected had been stolen. At that time, the value of this asset was close to 150 million USD.

The plot took a twist after the transfer. The hacker indeed showed up and quickly transferred away 490 coins. But the operation here became interesting — he left behind 10 Bitcoins.

The community was in an uproar. Some questioned whether the hacker had any "martial ethics," while others were curious: was leaving these 10 coins a mistake or intentional? Some netizens did a simple calculation, and according to the current market, the market value of these 10 coins is close to 700,000 USD. What does this mean, a metaphor for ransom, or a form of mockery?

From another perspective, Wang Chun's "tuition fee" this time is quite brutal. Netizens have dubbed this incident the "most expensive security awareness course"—fortunately, only 490 coins were lost; if all were transferred away, the outcome would likely have been rewritten. This private key security issue has also sparked considerable reflection within the industry: how many vulnerabilities are there left in protecting large assets?

What do you think? Is the hacker's operation really principled, or is it purely a matter of luck?