Often these mail carriers are attacked for their universal keys - also called arrow keys - that open cluster mailboxes often found at apartment buildings, industrial complexes and HOAs.

As he keeps an eye on the transformational cuts, Castro says his constituents pointed to another smaller one that impacts their lives in real ways — maintaining and replacing cluster mailboxes that ...

A federal audit reveals security issues at Sacramento County USPS facilities, with missing mailbox keys linked to increased mail theft.