You can change your profile bio, profile photo, Mapillary username, and password via your dashboard in the profile settings section.
If you want to connect an additional login option (Facebook, OpenStreetMap, Google+, or ArcGIS) to your Mapillary account, you can do that via the dashboard as well.
The dashboard is accessible via the icon at the top of your Mapillary profile.
If you want to change the email address that you use for Mapillary, please write to us on email@example.com. If you have any imagery to upload in the Mapillary mobile apps, do that before you ask for an email change—otherwise you won't be able to upload it anymore. Also, note that this email address is not visible to anyone publicly; it's only used for Mapillary communications (depending on your notification settings) and/or signing in.
If you have forgotten your login email, contact us and we'll help. If you've lost your password, you can recover it via the link at the bottom of the sign-in screen.