Lock your credit on your own for free with the 3 major credit agencies plus a 4th innovis.
I do have a Discover card that alerts me when my credit file is accessed (Experian only) I dont have the card for that purpose, its a nice FREE perk, since I have my credit locked not a big deal but it does work as whenever I unlock my credit for any purpose for it to be checked by a company Eventually I get an alert from Discover saying such and such company accessed my credit file and then later on, such and such company added them to my credit file.
Most credit cards offer free credit scores which Discover does well.
I dont pay for any credit services