There was a silly little movie in the 80's called "Maximum Overdrive", written and directed by Stephen King.
In it Aliens somehow cause machines to 'turn' on human beings and attack us.
They could remake that movie now but instead of Aliens causing the machines to attack people, it could be malicious 'hackers' that do it, and it would be more believable that the original film.
The plot that kicks off Battlestar Galactica (2004) happens because pretty much everything uses wireless communications, including most systems within the space ships