When signing in to web services, many people have set up two-step authentication or multi-factor authentication because authentication using only an email address and password can be insecure. However ...

Losing your keys can be a terrible experience and while the best plan of attack is to retrace your steps, blogger celtwolf wanted a little more insurance, so he created a QR code for his keychain with ...

Don’t you hate that feeling, the one you get when you have just realized that you have no clue where you may have left your keys? If you are unlucky enough to have lost them in a public place, odds ...

In the era of instant data exchange and growing risks of cyberattacks, scientists are seeking secure methods of transmitting information. One promising solution is quantum cryptography—a quantum ...

As previewed last year, Google Messages is beginning to roll out QR code-based key verification to confirm that you’re “communicating with the person you intend to.” Once available, open a ...