It's the invisible ink of childhood, all grown up and with a serious purpose. Researchers have developed a high-tech ink, which they used to print QR (quick response) codes that are invisible in ...

Barcodes and QR codes feel like they’re everywhere nowadays, but they don’t have to be. Scientists at MIT have developed an invisible tagging system called BrightMarker, which embeds fluorescent tags ...

U.S. Government Taking Active Role in E-Commerce Anti-Counterfeiting The RainbowSecure marking system is the world's most advanced invisible covert serialization and authentication solution, deployed ...

QR codes, those goofy black-and-white arrangements of digital information, could help secure bank notes. Scientists just showed that they could print an invisible QR code made of a high-tech ink ...

The second trick is handy for all apps – not just chat services DON’T let the snoopers win: there are easy ways to hide your text chats from prying eyes. If you’re using popular services like WhatsApp ...