I am an expert in SAP security, especially related to authentication and Secure Single Sign-On ("SSSO"), and when the Kerberos protocol is involved. I work for a vendor, and SAP partner called CyberSafe Limited. Our products are typically purchased by SAP customers who are looking for ways to integrate their SAP application user authentication with Microsoft Active Directory authentication. We can provide solutions for Secure SSO, or turn off SSO and just provide improved security and/or common authentication.
I have been working with SAP security, and SSO for about 6 years and I enjoy helping people who make contact with me, even if our companies products are not suitable. I often find that when I talk to SAP customers about their authentication needs, I can recommend other vendors products/solutions that I am familiar with, and we can also both learn from each others experience.