For many organizations, applications have been moved to an SOA environment and now must be extended to offer a service interface to new sets of users that were not originally planned.  Extending resources in this way requires that you reassess your security risk. To minimize any risk, you need the right level of security checks for user authentication and authorization.

Read this IBM whitepaper to see how you can address confidentiality and access control needs as services are delployed using common application assets.