RLS policies provide a final line of defense against cross-tenant data leakage by enforcing isolation at the database level, independent of application logic.
Secure session management requires validating tenant membership before setting database context variables that drive RLS policy decisions.
Security tests must verify both tenant isolation and role-based access restrictions across different user contexts and scenarios.
Composite indexes on tenant_id and related fields are essential for maintaining query performance when RLS policies are enforced.