The case stems from a 2016 decision by the Investigatory Powers Tribunal (IPT), the UK tribunal tasked with examining complaints against the UK intelligence services, that the UK government could lawfully use sweeping ‘thematic warrants’ to engage in computer hacking of thousands or even millions of devices, without any approval by a judge or individualised reasonable grounds for suspicion. Thematic warrants are general warrants covering an entire class of property, persons or conduct, such as…