Spyware developed by the company NSO Group is back in the news today after Apple released an emergency fix for iPhones, iPads, Macs, and Apple Watches. The update fixes a vulnerability silently exploited by software called Pegasus, which is often used in high-level surveillance campaigns by governments.
Zero-day
Pegasus spyware is typically installed on victims’ phones using a software exploit that requires little or no user interaction—perhaps no more than a click. The exploits change over time, as they are discovered and patched by Apple.