How does Profile work in Salesforce?
Every Salesforce user must be assigned exactly one profile. The profile controls fundamental access: which objects a user can read, create, edit, or delete; which fields are visible or editable (field-level security); which Apex classes and Visualforce pages are accessible; login hours and IP restrictions; and default record types. Standard profiles (e.g., Standard User, System Administrator) ship with Salesforce and can be cloned but not fully edited. Custom profiles offer complete control.
Salesforce's recommended best practice has shifted toward using the Minimum Access profile combined with permission sets to grant additional privileges incrementally. This approach simplifies auditing and makes it easier to comply with the principle of least privilege. Clientell AI can analyze your org's profile landscape, identify over-provisioned profiles, and recommend a migration path to a permission-set-centric model, often reducing security risk within hours.