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I'm working on a financially leaning site and was curious — is there a standard amount of time to wait before expiring a reset password link once a user has forgotten his/hers and requested to reset it?

On the other hand, if there is no "standard" as such, how might a UX practitioner go about figuring out what would be a sensible and acceptable period for their use case?

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This may be a duplicate post I think. Does this post answer any of your queries?… – JonW Nov 6 '13 at 15:24
That Q has 4 answers addressing the 'why', none addressing the 'how much' of this question. – Erics Nov 6 '13 at 16:33

Generally when users initiate a password reset, they're actively in the process of trying to get into their account. I would set the link expiration between 30-60 minutes, and insert a message letting the user know when the link will expire and have instructions on how they can re-engage the process again if they need a new link.

However there is an approach where you could use a generic forgot password link for all users and wouldn't need to worry about link expiration at all. Since there are some security issues that arise when you provide a user specific link, you could have all users visit a forgot password page where they have to answer specific challenge and security questions before proceeding to the password reset screen. With this method you reduce the risk of a user's account being compromised if that same user's email account has also been compromised. This approach is outlined in this PDF file.

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I think 24 hours is a user-friendly (ie, convenient) time limit. It's easy to remember if you're the requesting party and it gives you plenty of time.

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This answer expresses an opinion when the question asks for a standard. – James Jenkins Nov 6 '13 at 19:10

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