http://invest5at5ilifdbmdfbdkoyqixpnop7pwtqdcf73crdjyakcc5jvlad.onion/simple-bitcoin/index15.html
:ch. 10 If the private key is revealed to a third party, e.g. through a data breach, the third party can use it to steal any associated bitcoins. As of December 2017, around 980,000 bitcoins have been stolen from cryptocurrency exchanges.