The curbside or wall mailbox we have all trusted for many years, is under attack.
The better way to protect your mail from theft, avoiding things like identity theft, stolen social security checks, credit cards, or credit card offers, is a locking mailbox.
The locking mailboxes listed are all approved by the USPS Postal Inspector. They, like all mailboxes must be mounted according to USPS specifications. If in doubt check with your mail carrier or your local Postal Inspector.
Prices vary, as well as the degree of protection, I would advise that you read the specifications and read the reviews, before making a selection.
A top performer is the Fort Knox brand name, be sure to check them out!