How can you tell if your iPhone is infected with spyware?

How can I be sure my iPhone has spyware, what are the symptoms and checks, and what are the steps for removal if it’s infected?

Check these practical indicators:

Performance issues: Unusual battery drain, overheating, or sluggish performance when you’re not running intensive apps.

Data usage: Unexpectedly high cellular/wifi usage that doesn’t match your normal patterns.

Strange behavior: Apps crashing frequently, phone restarting randomly, or unfamiliar apps appearing.

Basic checks:

  • Review installed apps in Settings > General > iPhone Storage
  • Check Screen Time for unusual app activity
  • Look at cellular data usage by app

For removal:

  1. Update to latest iOS immediately
  2. Remove suspicious apps
  3. Reset all settings (Settings > General > Reset)
  4. If concerned about advanced spyware, factory reset and restore from a clean backup

Reality check: Consumer spyware on updated iPhones is rare due to Apple’s security model. Most “spyware symptoms” are actually misbehaving apps, iOS bugs, or hardware issues. Unless you’re a high-value target or someone had physical access to install something, standard malware is unlikely.

Run through the basic checks first before assuming the worst.