The story: A former senior Israeli official has credited Israel with the leaking of the medical file of Mahsa Jina Amini—hailing the move as a “cyber takeover” which “led to” months of deadly protests in Iran. The young woman’s death in morality police custody in 2022 sparked widespread unrest.

The claim of Israeli involvement has revived Iranian accusations that foreign actors fueled the 2022 protests—and potentially shed light on a shadowy hacker group that has targeted Iranian state institutions in...