Someone tracked/hacked my Apple ID

You may read this --> If you think your Apple ID has been compromised - Apple ...

Cobra118 Said:

"Someone tracked/hacked my Apple ID: It has been observed that someone has been tracked/hacked my Apple ID and set for call redirection on his/her mobile, using his/her mobile number.[...]"

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Secure your Account:

A. Verify Your Devices:

Verify that your the devices logged in to your account or officially yours, by using this link: Check your Apple ID Device List to See where you're Signed in - Apple Support

B. Deauthorize All Option:

Try Deauthorize All. You can only Deauthorize All items once every 365 days. So, you may have to wait up to a year before you can perform this.  Go Here: Authorize or Deauthorize your Computer for iTunes Store purchases - Apple Support

C. Consider Modifying your Credentials:

Having been stollen, someone likley has your credentials. So, by all means, consider modifying them, starting with a new password.

• Modify: your login credentials (Using Both a New eMail and a New Password for each and all sites)
• Associate: a different method of payment to your account
• Enable: Two-Factor Authentication for Apple ID and for all other accounts that have such an applicable option

Thumb Rules:

1. Enable  Guided Access before handing over an iPhone to kids
2. Don't share Apple IDs
3. Don't Jailbreak
4. Don't share sensitive information pertaining to your device and payment methods
5. Beware of Phishing