Equifax, which allowed the theft of the credit files of a majority of adult Americans, is now offering freezes on credit records for free. When your records are frozen, they will not share them with anyone. If millions of us freeze our records at Equifax, while leaving them unfrozen at its competitors, then those who want to check our records will find Equifax useless. If they are rendered largely useless, they will wither and suffer corporate death, which they deserve.