Unexpected pop-ups or scam alerts in Safari or other browsers
Unusually fast battery drain
iPhone overheating when not in heavy use
Sudden drop in performance or frequent freezing
Apps crashing or opening by themselves
Unknown apps appearing on the Home Screen
Browser redirects to unfamiliar websites
Unusual data usage spikes
Calendar spam or unwanted subscriptions
Settings changing without your action
Strange messages sent from your account
Repeated requests to install profiles or certificates
Device storage filling up unexpectedly
Persistent ads outside of normal apps
Face ID, Touch ID, or passcode behavior changing unexpectedly