QR codes are everywhere these days-on product packaging, restaurant menus, even tickets and invoices. They make life easier by letting you access links, download files, or make payments with just a ...

Software built into the cameras on iPhones and Android phones make quick work of decoding QR codes. How do you do that on a laptop or desktop computer?

For every form of communication or messaging out there, you can be sure that scammers and hackers are trying to find a way to take advantage of you—from emails to texts to calls. This threat extends ...