Business units, security roles, hierarchy security, teams, users, field-level security, and sharing — how to control exactly who can see and do what.
The organizational structure security is built on top of.
Privileges, access levels, and how roles combine.
Manager and position hierarchies for cross-BU visibility.
Owner teams vs. access teams, and when to use each.
Licensing, business unit assignment, and disabling users.
Locking down individual columns independent of table security.
One-off exceptions to the standard security model.
A full security model for a realistic org structure.