How does authentication work?

Identity theft is not a joke, Jim

TL;DR

Authentication is how the apps you use know that you are who you say you are: through something as simple as a password, or as complex as biometrics.

• Accessing your apps and data on the web relies on identity: only you should be able to see your stuff!

• The most popular authentication method is username and password, but schemes like single-sign-on an…