NSO Group, a private equity-owned software company, has come under fire from Amnesty International for the second time in six months, with the human rights group alleging its spyware has been used by Morocco’s government to target an investigative journalist.

Israel-based NSO Group is majority owned by European buyout firm Novalpina Capital and has been accused by Amnesty of licensing its surveillance technology — Pegasus — to authoritarian regimes that use it to target journalists and dissidents around the world.