IMEI explanation from Wikipedia:
News Article: "The Saudi government is hunting down women who flee the country by tracking the IMEI number on their cellphones":
IMEI explanation from Wikipedia:
News Article: "The Saudi government is hunting down women who flee the country by tracking the IMEI number on their cellphones":
There are also plenty of ways to cover your tracks online. Just depends how far you want to go. It's a trade off between privacy and convenience. There is also a learning curve and is more difficult if you are not tech savvy.