2001 A Space Odysee would like to have a word.

Although, it’s the A.I. that takes over, Dave had to go into the mainframe and shut down HAL manually. “Technically” hacking HAL.

Edit: yes, Dave doesn’t use a keyboard to hack HAL so maybe it doesn’t count. But the 1982 movie Tron beats Wargames by a year.😉

2001 A Space Odysee would like to have a word.

Although, it’s the A.I. that takes over, Dave had to go into the mainframe and shut down HAL manually. “Technically” hacking HAL.