The Meta-owned messaging app sued NSO Group in 2019 for trying to hack 1,400 users. NSO, however, says its technology 'plays a critical role in preventing serious crime and terrorism.'

The case caps a six-year battle between the social media giant and the surveillance firm, casting an unusual amount of light on the spyware industry.

A jury ordered huge punitive damages against NSO, the Israel-based maker of spyware already banned from use in the U.S.