this post was submitted on 05 Apr 2024
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Security

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Fidelity and passwords via T9 (sh.itjust.works)
submitted 2 years ago* (last edited 2 years ago) by csm10495@sh.itjust.works to c/security@programming.dev
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Anyone here use fidelity (https://www.fidelity.com/)? I had to call to get something done with my account and thought it was weird that they have you (more/less) T9 dial your password into the system, though its not real T9 in that (for example) one press of 2 would mean either a,A,b,B,c,C,2. They say for special characters just give a * sign.

Any thoughts on if that is safe on their part? It seems weird to me since they either need the password in plaintext on their end or I guess the hash of the T9 version of the password which would be less secure anyways because of: all one case and only one type of 'special character'.

And yes: before you ask this was 100% the actual fidelity phone number: +1 800-343-3548

In their defense they did ask for other verification information once I got a person, but still felt really weird.

Any thoughts on the security of this mechanism?

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