Saudi Arabia’s embassy in London did not immediately respond to a request for comment.
Earlier this month, Roger Eastman, a judge in the High Court, gave Assiri permission to serve his lawsuit on the Saudi government, a step that required the court to find Assiri has an arguable case.
The decision announced on Monday to allow the case to be served on Saudi Arabia in Riyadh was made on Oct. 11.
Assiri said in a statement: "I am fully aware that the authorities will want to target me. However, it is outrageous for them also to target individuals such as the victims of rights abuses and their families in Saudi Arabia simply because these people have been in contact with me."
The case is the latest spyware suit against a Gulf state to be heard by an English court: the Court of Appeal earlier this month rejected Bahrain’s bid to claim state immunity in a case brought by two dissidents who say its government hacked their laptops with spyware.
London’s High Court in 2022 rejected an attempt by Saudi Arabia to claim immunity in a separate case brought by a dissident over the alleged use of Pegasus.