F2Pool co-founder Wang Chun lost 490 bitcoins after transferring 500 bitcoins to a suspicious address to test private key security

Regarding the community's heated discussion about the 50 million USDT phishing attack, F2Pool co-founder Wang Chun (@satofishi) tweeted, "Last year, I suspected that my private key was leaked. To confirm whether the address was really stolen, I transferred 500 bitcoins to that address. To my surprise, the hacker 'generously' only took 490 bitcoins, leaving me with 10 bitcoins, enough for me to make a living."