How do I ensure complete removal of synced contacts and changed passwords from a hacked iPhone?

Someone imbedded a iPhone in my iPhone and synced their contacts into my iPhone. How can I be sure that they are completely gone from my account also they changed so many passwords that I deleted but are they really gone


[Re-Titled by Moderator]

Original Title: Hacked my iPhone

iPhone 11, iOS 18

Posted on Nov 19, 2025 2:39 PM

Reply
2 replies

Nov 19, 2025 2:43 PM in response to Tornadotongue

Why do you think your device has been "hacked"? Because of all the security features Apple has around its equipment this is incredibly costly and difficult to achieve —> https://security.apple.com/blog/memory-integrity-enforcement/ Much more likely is your account may be compromised, giving another user access to your account on your hardware. Even account access is surrounded by a number of security features but is more easily compromised by hackers convincing people to reveal security information, or users not bothering with implementing Apple’s security features.


Read this document if you think your Apple Account has been compromised. --> If you think your Apple Account has been compromised - Apple Support


For iOS 15 or earlier, if you want to see if anyone else has access to your device or accounts, click here --> Checklist 1: Limit device and account access - Apple Support


For iOS 16 or later see how Safety Check on iPhone works to keep you safe. Safety Check for an iPhone with iOS 16 or later - Apple Support


Use the information in this document to check your Apple ID device list to find where you're signed in --> Check your Apple Account device list to find where you’re signed in - Apple Support


Related materials:

Personal Safety User Guide

Personal Safety User Guide - Apple Support

> open the Table of Contents and review the articles


A document with general information about security and your Apple ID --> Security and your Apple Account - Apple Support


Contact Apple for help with Apple ID account security. This page provides country-specific Apple Support contact information ➞ Contact Apple Support - Apple Support


How do I ensure complete removal of synced contacts and changed passwords from a hacked iPhone?

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