Is replying to an sms a reliable way of authenticating a response

1. How does SMS authentication work?
2. What is a good way to authenticate users?
3. Should you reply to random texts?

How does SMS authentication work?

SMS text verification lets websites, apps, banks, and social networks double-check the identity of a user. After entering your username and password, companies will send an SMS verification number to your smartphone. Use that number to complete your login. That's SMS verification.

What is a good way to authenticate users?

In authentication, the user or computer has to prove its identity to the server or client. Usually, authentication by a server entails the use of a user name and password. Other ways to authenticate can be through cards, retina scans, voice recognition, and fingerprints.

Should you reply to random texts?

With any spam text messages, you should never reply to them. Doing so confirms to the spammers that you're a real person and a potential target. Sometimes spammers try to trick you into responding by saying, "text STOP to be removed from our mailing list" or something similar.