You've got malware!
Flashback to the early 2000s, when this non-IT pilot fish works in a building where the level of computer literacy is hovering near absolute zero.
"I was the only person in my department who had any computer skills at all," fish grumbles.
"One day we all got an email notice from management about a virus that was going around, spread by email. We were warned about clicking links and opening pages and all the other standard warnings."
Fish suspects that most people in the department will just delete the warning, since they don't use their computers for anything but the bare minimum required by company business -- and they barely understand even that.