While WhatsApp is most commonly used on mobile devices, desktop apps are available in addition to a web app. Since the messaging service is tied to your phone number (at least for now), you’ll need to have your handset nearby for authentication before you can log into a PC or laptop.
The current authentication method uses your phone’s camera to scan an on-screen QR code to gain access to your account. If you find this fiddly or irritating, you’ll be delighted to hear that it could change soon.
While the current method of signing in to web and desktop apps using a QR code isn̵
However, in the latest beta version of the WhatsApp app for Android, WABetaInfo found references that show the ability to sign in with your fingerprint may not be far off.
Touch and go
This new way of signing in to WhatsApps web and desktop apps has some important advantages. First, it’s much more secure and eliminates the risk of someone finding your phone and signing into your account. Second, it’s a lot faster because just touching your phone is way faster and more convenient than recording and the camera.
It’s hard to say when (or if) this feature will be available to all WhatsApp users, but we’ll keep you updated as we know more.