#交易故事 Trading Story #BTC交易 BTC Transaction In the winter night of 2017, I witnessed BTC breaking through $19000 while gripping my sweating phone. The 12 bitcoins exchanged for my mortgaged house three weeks ago have now swelled into a gold mountain in my exchange account.

At two in the morning, a confirmation email popped up: "Withdrawal review approved". The moment my finger slid across the screen, the office suddenly lost power. In the 30 seconds before the backup power kicked in, a hacker used my API key to empty my position.

Now, whenever I pass by the mortgaged old house, I always reach for the cold wallet in my pants pocket — that 0.35 BTC accidentally left due to network delays, escaped synchronization in the last second before the power outage.