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As far as I've read, passwordless login like Slack uses (user inputs their email and then clicks on the login link in their email) is becoming more common and is just as secure as logins that require a password.

I am a designer at a financial technology company whose users skew older. Perhaps this type of login will feel unfamiliar to them (and thus untrustworthy) or too easy, like some secure step is missing. Has any research been done on the perceived security of this flow?

  • offer both authentications method and make the "magic link" optinal (this article explains further auth0.com/blog/… ) – BlueWizard Jan 8 at 13:08
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Passwordless authentication is quite likely more secure than a standard password; people have little patience with traditional username/pw security, and it's almost a 2-factor authentication process. The easier for the end user your security protocols are, the more secure the authentication process is (password123 anyone?).

So...I don't know of extant research in perception, specifically, but it would be a fantastic usability test to run with your users/target audiences. Since you're working for a financial institution they have the resources to run a test on this. Or to let you do the same!

I'd love to hear if y'all do run this kind of test - it'd be great to share with the community. And quite possibly an industry-first customer experience upgrade. There's a lot of benefit to this approach IMO.

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I work on security products for many years. The current product I'm working on, (mobile app to secure employees' data), uses exactly that.

In the last ~5 years that the product exists, we never heard a claim from end-users (banks, healthcare, insurance, medical) or admins, that the authentication method is not safe enough. Not sure what it says about your specific users and product though - decide yourself.

What you should not decide by yourself and be responsible for, is what authentication method to use. There are different considerations to that. Always consult a security expert.

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