Apple tried suing NSO Group, which is one of the most wanton and dangerous iPhone hacking firms anywhere in the world. Hilariously, halfway through the case Apple turned a 180 claiming some trade secret danger, and begged the court to drop the case: https://appleinsider.com/articles/24/09/13/apple-files-to-st...

This entire lawsuit was bizarre, and weirdly mishandled by Apple. It suggests to me that Apple was threatened, either by US spying agencies, NSO Group or NSO's local jurisdiction.