He considered himself extremely secure, yet in his sleep, 8.7 million was stolen. He used a cold wallet to store his coins, believing it was the safest option, but ended up with 8.7 million USDT emptied overnight!
He is an experienced player, keeping all his assets in a cold wallet and never trusting anyone.
The mnemonic phrase was written on a small piece of paper, and a photo was taken and stored in iCloud for 'easy access anytime,' which is actually the most dangerous⚠️.
Until one day early in the morning, he woke up to receive a notification on the blockchain:
There were 4 large transactions from his wallet, totaling 8.7 million USDT, all of which had been cross-chain mixed and transferred out.
He was stunned—no authorization, no clicking on links, no unusual operations at all, why was he robbed?
After we got involved, we confirmed the following on-chain characteristics:
It was not a contract phishing, nor was it a fake authorization; all operations were standard private key signed transactions.
The private key information was leaked from the mobile cloud, possibly read remotely by a third-party spy app from the photo album.
v After tracing the flow of funds, we found that one of the transactions had not yet completed the exit and was successfully frozen at a stop payment node, with judicial proceedings currently underway.
He lamented: 'I wasn't scammed by someone; I was destroyed by my own complacency.'