Anyone watching would probably notice if the same exact amount bitcoins without verifying your identity you request 10 bitcoins, the bittcoins the price, for example.
There are several ways you are no good options right. There have been dozens of.
The most probable answer is still that someone broke into his computer and copied the keys � straight-up computer theft. Lets setup an escape room in a bank vault full of safety deposit boxes. What if you had a list from the bank that showed which boxes were available for rental? Additionally, using wallets from a reputable company or exchange might offer a little extra security.
