Single sign-on (SSO) has gained great popularity, but due to confusion in the marketplace, decision makers in many organizations don’t realize that SSO alone doesn’t adequately address their security requirements, nor does it address issues of compliance with Sarbanes-Oxley, the European Privacy Directives, HIPAA and other regulations. Though implementing SSO can be part of a good security infrastructure, it is only one aspect. Companies that don’t understand this can spend millions without accomplishing their goals.