Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...

You may well go your entire life not needing to know the serial number of your computer, phone, or other device. On the other hand, if a time comes when your device needs to be repaired, replaced, or ...

Experts stress that keeping records and making prompt police reports are important after a theft or if your timepiece is ...

Welcome to Further Details, a recurring column where we investigate what purpose an oft-overlooked product element actually serves. This week: why people hide their watches’ serial numbers. Wait, ...

Your Social Security Number is in many ways your identifying token in American society, and it's tied to much beyond Social Security.

If you've ever called your carrier's customer service to activate a prepaid SIM card or troubleshoot a malfunctioning Android SIM card or iPhone SIM, then you've likely needed your ICCID number. The ...