What is the difference between Post Office Box and Lock box?

A Post Office Box (P.O. Box) is a secure mailbox located at a post office where individuals or businesses can receive mail, providing privacy and a physical address separate from their residence or office. A Lock Box, often associated with banking, is a secure storage space, usually in a vault, where individuals can store valuable items, documents, or cash. While a P.O. Box is primarily for receiving mail, a Lock Box is for safeguarding physical assets.