The word "hack" refers to a clever or creative solution to a problem. It can also mean to gain unauthorized access to a computer or system. Full definition
There have been many instances of hacking of exchanges and wallet providers online so we recommend that you keep your Bitcoin one of two places. (bit-media.org)
When people think about a cyber attack on election day they are most likely to think of hacking into voting machines and changing the results of an election. (thedrive.com)
I have been reading up on travel hacking for the last month! (notyouraveragegal.com)