From then on, Emma made it a point to always check the serial number and IMEI of her devices before making a purchase. She also shared her experience with friends and family, advising them to do the same.
She flipped the phone over. The serial number was etched in microscopic text on the back—a string of letters and numbers that looked like random noise. To most people, it was just manufacturer code. To Jenna, it was a lock’s keyhole.
For older models, it may be printed on the SIM tray or the back of the device.
“Let me look at it first,” she said.