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Credentials in security context are elements that prove your identity to a system, for example a username and password or a client-side certificate. It is usually used to describe elements supplied by the authenticating client, not when the server authenticates to the client or in mutual authentication schemes.
117
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Is it good or bad practice to allow a user to change their username?
I have looked all over online as well as this site to try to find out more information regarding the security of this, but haven't found anything. In my particular case, the product is a website, but …