Signs your phone has been hacked

Warning signs of a hacked phone

• Battery drains significantly faster than usual
• Phone feels warm even when not in use
• Unexplained data usage spikes
• Apps you did not install have appeared
• Phone is slow or crashes frequently
• Contacts report receiving messages you did not send
• Your accounts show logins from unfamiliar locations

What to do if you suspect hacking

• Change passwords for all important accounts from a different device
• Enable 2FA on email and banking accounts
• Check your installed apps and remove anything unfamiliar
• Run a security scan (Malwarebytes for Android, use Avira for iPhone)
• If in doubt, perform a factory reset — back up important data first
• Contact your mobile carrier if you suspect SIM swapping

Important: not all symptoms mean hacking

Battery drain and slowdowns can also result from software updates, ageing batteries, or background apps. Rule out normal causes before assuming hacking.