Hacker News Reader

a lot of exploits deliberately avoid persistence as an extra layer of protection from detection. Since most folks rarely restart their phones these bugs can live on your phone until a restart. So by restarting your phone on a weekly basis you are potentially wiping out memory only infections.

View on HN

Another explanation is the hardware root of trust. On iOS, for example, hardware root of trust in a separate physical security processor validates all code in a chain. An exploit cannot gain persistence across a reboot unless it has access to the private signing keys of Apple

Reply on news.ycombinator.com