I’m adding this post to keep track of the official websites for the major credit reporting agencies to make sure that I don’t go to any fake ones by accident.
Equifax: https://equifax.com
Equifax 2017 breach site: https://www.equifaxsecurity2017.com
Equifax 2017 breach settlement site: https://www.equifaxbreachsettlement.com/
Experian: https://www.experian.com
Transunion: https://www.transunion.com/
Also adding these two, who have been mentioned by Krebs on Security blog article about the equifax breach:
Innovis: https://www.innovis.com/
Chexsystems: https://www.chexsystems.com