What is a key security benefit of using a PO box?

The key security benefit of using a PO box lies in theft deterrence. When customers use a PO box, their mail and packages are delivered to a secure location managed by the USPS, minimizing the risk of theft that can occur with traditional mail delivery to a home or business address. By having a PO box, individuals can ensure that sensitive documents and valuable items are stored in a locked box, reducing the likelihood that they can be stolen or tampered with by unauthorized individuals. This is particularly important in areas where mail theft is common, providing peace of mind for mailbox users. Additionally, PO boxes are accessible only to those who have the key or combination, adding another layer of security for the contents inside.

The other options, while they may offer certain benefits, do not specifically address the core security aspect offered by a PO box that is primarily focused on protecting the customer's mail from theft.