F2Pool co-founder Wang Chun once tested the security of private keys by transferring 500 bitcoins to a suspicious address, resulting in a loss of 490 coins.

PANews, December 21 news, regarding the community's heated discussion on the “50 million USDT phishing attack,” F2Pool co-founder Wang Chun (@satofishi) tweeted, “Last year, I suspected 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 my livelihood.”