If Social Security numbers have been stolen, contact the major credit bureaus for additional information or advice. If the compromise may involve a large group of people, advise the credit bureaus if you are recommending that people request fraud alerts and credit freezes for their files.

Equifax: equifax.com/personal/credit-report-services

 or 1-800-685-1111

Experian: experian.com/help

 or 1-888-397-3742

TransUnion: transunion.com/credit-help

or 1-888-909-8872