Nemeses

The computer virus was the nemeses of the company's entire network.

The hero and villain in the action movie were nemeses.

The nemeses of computer hackers are the cybersecurity experts who work to keep their networks safe.

The detective and his nemeses engaged in a cat-and-mouse game that lasted for years.

The rainy weather has been a nemeses to the outdoor wedding plans.

The nemeses of the detective were always trying to outsmart him.

The hero and his nemeses had a fierce battle that lasted for days.