US Patent 10176318 Authentication information update based on fraud detection

Techniques for maintaining and updating authentication information for a plurality of accounts may be provided. In an example a first set of authentication information for the plurality of accounts may be maintained. A second set of authentication information that has been marked as potentially compromised may be received. A third set of authentication information may be generated based on the overlap between the first set of authentication information and the second set of authentication information. The first set of authentication information may be updated based at least in part on one or more security authentication protocols and the third set of authentication information.