http://help.salesforce.com/help/pdfs/en/salesforce_security_impl_guide.pdf
Audit Name: TNS Salesforce Best Practices Audit v1.2.0
Category: IDENTIFICATION AND AUTHENTICATION
References: 800-53|IA-2(6)
Plugin: Salesforce.com
Control ID: 174fb0c987f8a7fa0cb2c7aa63909ddf6feb53c51f9544eedf8bfdeb5da94d35