Signal, as an encrypted messaging app and protocol, remains relatively secure. But Signal's growing popularity as a tool to circumvent surveillance has led agents affiliated with Russia to try to ...

Whether you’re ordering drinks to your table in a pub or want to pay for car parking, QR codes make life simple. A quick scan of a black-and-white grid on your mobile phone takes you straight to a ...

Central and Western Railways have suspended QR code ticketing via the UTSonmobile app due to widespread misuse. Passengers exploited static QR codes to book tickets inside trains, evading fares. The ...