On August 6th, 2020 we detected attempted unauthorized access to a number of Fandom accounts using account details obtained elsewhere online. The attempts were not successful. Accounts were not compromised.
As a precaution, we reset the passwords on these accounts and sent emails to that effect to the account owners. (These emails contain the text "We've detected suspicious login activity on your account".)
As suggested in that email, please use the 'forgot password' option to set up a new password for the account.
If you are unable to resolve it that way, please file a support request.
Sorry for the inconvenience!