Netsweeper is a small Canadian company with a disarmingly boring name and an office nestled among the squat buildings of Waterloo, Ontario. But its services—namely, online censorship—are offered in countries as far-flung as Bahrain and Yemen.
In 2015, University of Toronto-based research hub Citizen Lab reported that Netsweeper was providing Yemeni rebels with censorship technology. In response, Citizen Lab director Ron Deibert revealed in a blog post on Tuesday, Netsweeper sued the university and Deibert for defamation. Netsweeper discontinued its lawsuit in its entirety in April.