Android phones will now restart automatically every three days if left inactive — a new security feature quietly introduced by Google.Credit : Pe3k, Shutterstock
If you own an Android phone and notice it suddenly restarting every few days — don’t panic. Google has rolled out a quiet but important security update that might explain why.
The tech giant has introduced a new feature that will cause Android devices to reboot automatically every three days, but only if the phone hasn’t been used during that time. The aim? To keep things secure and tidy behind the scenes — and it’s a move that Apple users have already seen for a while.
Inactive Android phones will now restart automatically for security
The update mirrors a feature long in place on iOS devices since version 18, where phones that have been left idle will automatically restart to refresh the system.
While the change might come as a surprise, especially for those using a secondary phone or a work device that doesn’t get much attention, it’s all about reducing security risks. Devices that stay switched on for too long without rebooting can become a target for cybercriminals, as temporary data stored in memory could be vulnerable to attack.
How restarting your Android phone can prevent cyber attacks
Every time your phone restarts, it clears temporary files, processes, and leftover data from the apps and services you’ve used. While this may seem minor, it’s exactly the kind of data that hackers love to exploit.
With more apps running in the background than we often realise — from messaging to email to banking — keeping your device active without refreshing it increases your exposure to data breaches and privacy risks.
Rebooting won’t make your phone hacker-proof, but it does make their job a whole lot harder. That’s why Google is nudging users towards it with this subtle new rule.
Why Android users should remember their SIM PIN after reboots
For those who use a secondary Android phone, or a device that often sits untouched for days, there’s one thing to keep in mind: if your device reboots automatically, you’ll likely be asked to enter your SIM PIN. If you’ve forgotten it, you’ll need your PUK code or help from your mobile provider to regain access.
Google hasn’t made a big splash about this update — it’s been introduced quietly. But it’s a timely reminder that even a simple restart can improve your phone’s overall safety.
So if your Android suddenly restarts one morning, just know it might be working behind the scenes to protect you.
