How can someone see my text message on another iPhone
How can someone link my text messages and view them
iPhone X, iOS 12
How can someone link my text messages and view them
iPhone X, iOS 12
If you share an Apple ID with someone else, this is a very common occurrence. If you do share an ID, and assuming it is a family member, have them set up their own ID and set up Family Sharing so that you can share purchased content.
Another way that a person could see your iMessages is if they were signed into your Apple ID in the messages settings. They would be acting as you in that scenario. That would only work for iMessages and not for SMS texts.
If you share an Apple ID with someone else, this is a very common occurrence. If you do share an ID, and assuming it is a family member, have them set up their own ID and set up Family Sharing so that you can share purchased content.
Another way that a person could see your iMessages is if they were signed into your Apple ID in the messages settings. They would be acting as you in that scenario. That would only work for iMessages and not for SMS texts.
If you have enabled "Text Message Forwarding" on your iPhone
Check
Settings > Message > Text Message Forwarding > [Disable the device] which you do not want.
If iMessage is off then they could not get the message?
How can someone see my text message on another iPhone