back hack

or back-hack

[ bak-hak ]
/ ˈbækˌhæk /

verb (used with object)

to investigate (a computer or network hack) by following evidence from the point of the security breach back to its origin.
to reverse-engineer (a product or idea): Gamers back hacked the motion controls and built accessible hardware alternatives for players with disabilities.

noun

an act or instance of tracing a computer or network security breach back to its origin: The hackers were lured in with a honeypot and unmasked with a back hack.

Origin of back hack

First recorded in 2010–15