We Asked Security Experts How To Tell If Your iPhone’s Been Hacked
“For most iPhone users, the fundamentals still provide the greatest benefit: keep iOS updated, use strong and unique passwords, enable two-factor authentication, protect your phone with a strong passcode and turn on Stolen Device Protection,” said Pistolas.
Article source: https://www.huffingtonpost.co.uk/entry/signs-iphone-hacked_uk_6adf6523e4b0320e45d365f8