Collectors and dealers say some old $100 bills are quietly trading for many times their face value, turning an ordinary trip ...

Most people slide $20 bills into an ATM without a second glance, but a tiny symbol on the serial number can quietly turn an ordinary note into a collectible. That small star can mean a bill was ...

November, records show, CPD officers in 2025 have recovered nearly 400 “ghost guns” — effectively untraceable weapons.

Discover how the Luhn Algorithm verifies credit card accuracy, supports secure transactions, and helps prevent errors in inputting Social Security numbers.

If Windows 11 is deactivated after Disk Clone, it may be due to an issue with your system's unique hardware fingerprint.

Some features of the $2 bill can make the bill more valuable and rare. Red and brown seals are less common than green seals.

Our obsession with serial killers and true crime probably has concerning implications for our collective psyche. Why are we so drawn to darkness? The same could be asked of many of the protagonists of ...

Similar to human fingerprints, every smartphone has a unique 15-digit number termed the IMEI. The IMEI stands for International Mobile Equipment Identity and is used to identify your device on a ...

UPDATE: Apple has updated the recall information page to include a built-in serial number checking tool. Rather than checking your number against the Q combinations we provided earlier, just head ...

Your Apple kit is rock-solid, but even the best tech fails sometimes. Want to dodge a huge, unexpected repair bill? You need to know your service status right now. Confirming your device’s warranty ...

You can find your serial number and IMEI number by going into Settings > General > About. You can also dial *#06# in the phone app. If your iPhone cannot be powered on, you can find the IMEI etched ...