[F2Pool Co-Founder Wang Chun Reveals 490 BTC Stolen After Transferring 500 BTC to Suspicious Address to Test Private Key Leak] In response to community discussions about the '50 million USDT phishing attack,' F2Pool co-founder Wang Chun stated in a post that last year, due to suspicions of a private key leak, he transferred 500 BTC to the relevant address to confirm security. As a result, hackers stole 490 BTC and left 10 BTC.