Is it okay to combine Log-in and Sign-up for passwordless/magic-link logins?

1. Is Magic links safe?
2. How long should magic links last?
3. Why is Magic Link not working?

Is Magic links safe?

From a security standpoint, magic links are only as secure as a user's email address. If someone gets access to a user's inbox, they hold the keys to logging into accounts that run on magic links.

How long should magic links last?

You can for example allow the user to enter your app with traditional username and password if you like, and then send them a Magic Link (or device biometrics auth) just before they attempt a trade. ii) Magic Links need to be single-use only. iii) Magic Link duration needs to be short (typically expires < 15 minutes).

Why is Magic Link not working?

The Magic Link email must be opened, and the link must be clicked on from the mobile device where the app is installed. If you are opening the email from your PC, please try to open the email from your phone.