When developing a CloudEver app, I learned about iOS biometric authentication technologies, including Face ID and Touch ID. Then, I reviewed some apps with fingerprint sign-in features and found that many of them did not fully take advantages of iOS security capabilities. I would like to share my knowledge I've gained with the community, and I hope that the apps we use will be more and more secure.
Why Do We Need Authentication?
Most of the early Internet services mainly provided static content for everyone without login. Later, there were some dynamic services, such as forums, chat rooms, and so on. At that time, passwords were required for identity authentication. Since then, password authentication have been widely adopted by many Internet services.