Suddenly receive a message: an unknown number to me, is added and it is then associated with my Apple ID, there is choice No or Yes. I pressed No but the unknown number is still listed as if it's my number. I tried to deregister but it won't work.
Does this mean that the person is inside my iCloud system and access all my files?
How do I deregister this number listed on my system?
[Re-Titled by Moderator]
iMac 21.5″
Sometimes a search with better engine, may reveal more than one URL per reply.
Here's a few found from my search, with duckduckgo.com via browser site..
A variety of symptoms might be behind this issue; various attempts may be
required to solve the one(s) that apply to your exact circumstances.
Deregister iMessage on your iPhone or online - Apple Support
//support.apple.com/en-us/HT203042
Deregister and Turn Off iMessage - Apple Support
//selfsolve.apple.com/deregister-imessage/
*Unknown number linked to Apple ID - Apple Community (*linked articles)
//discussions.apple.com/thread/252449597?
If you think your Apple ID has been compromised - Apple Support
//support.apple.com/en-us/102560
Add or remove your phone number in Messages or FaceTime - Apple Support
//support.apple.com/en-us/108758
"See list of devices that you're currently signed in to with your Apple ID.
You can find out where you're signed in on your Apple ID account page."
If an item or device is connected to another Apple ID - Apple Support
//support.apple.com/en-us/102620
Sometimes a search with better engine, may reveal more than one URL per reply.
Here's a few found from my search, with duckduckgo.com via browser site..
A variety of symptoms might be behind this issue; various attempts may be
required to solve the one(s) that apply to your exact circumstances.
Deregister iMessage on your iPhone or online - Apple Support
//support.apple.com/en-us/HT203042
Deregister and Turn Off iMessage - Apple Support
//selfsolve.apple.com/deregister-imessage/
*Unknown number linked to Apple ID - Apple Community (*linked articles)
//discussions.apple.com/thread/252449597?
If you think your Apple ID has been compromised - Apple Support
//support.apple.com/en-us/102560
Add or remove your phone number in Messages or FaceTime - Apple Support
//support.apple.com/en-us/108758
"See list of devices that you're currently signed in to with your Apple ID.
You can find out where you're signed in on your Apple ID account page."
If an item or device is connected to another Apple ID - Apple Support
//support.apple.com/en-us/102620
How do I deregister an unknown number associated with my Apple ID
