IMessage I didn't write
How is it possible that an I-message was sent from Mac book that I didn't write? The message did not appear on my iPhone. The message was sent 6 months ago, but I only found it this week on my MacBook. How does this work?
I have also had text messages sent to me from people I don't know, but they know the geographical location of the town I live in. Have they picked it up from certain adult websitesI have been looking at? How can these people find this out about me? I have deleted my old Apple ID as I suspect I have been hacked.
MacBook Air 13″, macOS 10.14