These are the same guys who were outright permabanned from Facebook for hacking the whatsapp of about 1400 diplomats, government officials, human-rights activists, lawyers, and journalists scattered across the world.
https://www.theregister.co.uk/2019/10/30/nso_facebook_employ...
If a shady government wants you gone (and doesnt have the resources for black site rendition like the US) then NSO is basically their starting point.