Abstract: A password and/or email address management platform configured to regenerate a previously generated password for a given web domain or digital system without permanently storing the previously generated password. The platform can operate without maintaining a permanent store or list of other user-related information, e.g. a list of web domains or systems for which passwords have been generated. In an embodiment, the platform performs the steps of concatenating a plurality of password input data elements into a requested phantom password input data string, applying a hashing algorithm to the requested phantom password input data string to generate a phantom password hash, applying a hash-to-string function to convert the phantom password hash to a phantom password, and purging the password generation system of the phantom password after it is notified to a user.