IBM developerWorks has just published a brand new white paper titled "IBM Sametime 8.5.2 Security Features." The paper was written by Smriti Talwar, our security architect, with Anna Guri from our development team and Jonathan Crissey from our support team. Here's a summary:
IBM Sametime 8.5 has many new components that leverage IBM WebSphere and IBM DB2 infrastructures. This paper provides an overview of the security features of the new WebSphere 8.5.2-infrastructure-based offerings along with security-related best practices for the existing components.
Check it out. It's a good read. You can find it here.