Keeping data private can be quite a challenge. Of course it is easy enough to add predicates to your reports. But how do you handle data entry? You'll want to prevent users from adding data that is visible to other users. The same holds true for changing and removing data.
Implementing this level of security can be handled by the application, but we all know this is not the way to do it. What if the user downloads SQLcl or SQLDeveloper and sets up a connection to the database? What if we want to expose part of the data as REST Services?
Taking advantage of Virtual Private Database might just be what you're looking for.
Even though VPD is nothing new, implementing it correctly might be a challenge.

This session will explain the basic concepts and go over a detailed example of how to integrate VPD with APEX.