Jamal Khashoggi probably thought the messages he was sending to fellow Saudi dissident Omar Abdulaziz were hidden, cloaked in WhatsApp security. In reality they were compromised — along with the rest of Abdulaziz’s phone, which had allegedly been infected by Pegasus, a powerful piece of malware designed to spy on its users.

Abdulaziz, as CNN reported last month, is suing the creators of Pegasus, Israel-based cyber company NSO Group, accusing them of violating international law by selling the software to oppressive regimes.