Since the onset of the Covid-19 pandemic, international research collaborative Forensic Architecture has been investigating the use of Pegasus, a spyware product developed by the private Israeli cyber-arms firm NSO Group. Pegasus has been licensed by governments around the world to covertly surveil journalists, activists, and political opponents by hacking their phones, and has been linked to high-profile human rights cases such as the 2014 disappearance of 43 students from Ayotzinapa, Mexico, and the brutal murder of Saudi journalist Jamal Khashoggi in Istanbul in 2018. In “Terror Contagion,” presented at the Musée d’art contemporain de Montréal (MAC), Forensic Architecture and a few high-profile collaborators—filmmaker Laura Poitras, musician Brian Eno, and whistleblower Edward Snowden—map a preliminary network of Pegasus’ operations, attempting to visualize the frightening scale of its global reach as well as to humanize the experience of its civilian victims. Mirroring the collaborative nature of Forensic Architecture’s work and the networks that Pegasus is designed to infiltrate, the exhibition fills a subterranean, windowless gallery with a dense web of interconnected films and videos that feature interviews with people targeted by the spyware alongside haunting, disturbingly beautiful data visualizations of these attacks and how they are interconnected. Explanations of how the …