I'm creating a webapplication for users that are racing in a rally.

I have the following data from the different racers:

  • Username
  • Password
  • Mobile phone
  • Email

The problem is they never know their password. Is it possible for them to login without password? Maybe with a code on their mobile phone or .. ? (they will always login with mobile phone)

  • Nonsense! Password is authentication, which together with identification are parts of the login process.
    – Max Yudin
    Jul 25, 2018 at 15:29

1 Answer 1


Yes you can, you can easily just ask for a user name and/or email or text/email them their OTP(one time password).

This is becoming more popular on mobile apps that ask for just a phone number and text a code to enter for authentication.

Examples https://auth0.com/blog/how-passwordless-authentication-works/ https://www.okta.com/security-blog/2018/04/is-passwordless-authentication-actually-secure/

For wordpress auth there are plugins already. https://wordpress.org/plugins/passwordless-login/

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