# Keep Your Devices and Apps Updated

Updates don't just add features, they close known security holes. A simple, low-effort routine for keeping your phone and computer current.

Software updates can feel like a chore, but most of them exist to close **security holes** that attackers actively exploit[↗](/exploit). An out-of-date phone, computer or app can be targeted through a vulnerability[↗](/vulnerability) the vendor already fixed. The good news: once you turn updates on automatically, they take almost no effort.

 
## Why does this matter so much?
 When a flaw is discovered, the vendor releases an update that fixes it. Until you install that update, your device stays exposed. Attackers usually don't chase the newest vulnerabilities, they target **old, well-known ones that people never got around to patching**, because millions of unpatched devices make an easy target.

 
## The "I'll do it later" trap and common myths
  - **"Updates will slow my phone down."** Security updates are usually small and often improve performance, the real risk is not updating.
 - **"Nothing will happen to me."** Most attacks aren't targeted at a specific person, they're automated, and don't care who you are, only whether you're exposed.
 - **"I have antivirus[↗](/antivirus), that's enough."** Antivirus is one layer of defense; it doesn't substitute for closing a known hole.
  
## Update your phone
 
### Android
 **Operating system:** Settings → System → Software update (on some devices: Settings → About phone → Software update), then tap "Download and install".

 **Apps:** Play Store → profile icon (top right) → "Manage apps and device" → "Update all". You can also turn on auto-update from the same menu.

 
### iPhone (iOS)
 **Operating system:** Settings → General → Software Update → "Download and Install". Turn on "Automatic Updates" on the same screen.

 **Apps:** Settings → App Store → turn on "App Updates" so apps stay current automatically.

 
## Computers and other devices
  - **Windows:** Settings → Windows Update → "Check for updates".
 - **Mac:** System Settings → General → Software Update.
 - **Browser:** the program you likely use most on the internet, an up-to-date version protects you from malicious sites. Most browsers update themselves whenever you close and reopen them.
 - **Smart home devices and routers:** these run software too, check for firmware updates occasionally.
 - **Older devices:** devices and operating systems that no longer receive updates ("end of support") carry real risk, replace them where you can.
  
## After you update
 Some updates only take effect after a restart, don't keep dismissing that "restart now" prompt. Before major updates, it's also a good habit to back up anything important.

 
> The rule is simple: when an update notification appears, install it as soon as you reasonably can, and restart the device if it asks you to.

## Related reading

[Closing the Window: Patch and Configuration ManagementMost breaches exploit vulnerabilities that already had a fix available. Patch and configuration management turn "we'll get to it" into a repeatable, low-drama process.](/closing-the-window-patch-and-configuration-management)
[Back Up Your Important Files RegularlyPhotos, documents and memories can disappear in an instant. A simple approach to backing up your phone (Android/iPhone) and computer.](/back-up-your-important-files-regularly)