maravis.com

Twitter has had to reset the passwords to some of its users after they noticed some anomalous usage. The number of followers for a couple of accounts grew fast enough to trigger an investigation.

Authentication is an important component of security. Almost every web application published on the internet uses some authentication to identify a user as a valid user, authorized to use the application. A user may have to remember so many passwords and use them on a regular basis that they can get confused. What if an application can identify you automatically, based on your computer (or any other device)?