29. What is a VMB?

A VMB is a Voice Mail Box. A VMB is a computer that acts as an answering
machine for hundreds or thousands of users. Each user will have their own
Voice Mail Box on the system. Each mail box will have a box number and a
pass code.
Without a passcode, you will usually be able to leave messages to users on
the VMB system. With a passcode, you can read messages and administer a
mailbox. Often, mailboxes will exist that were created by default or are no
longer used. These mailboxes may be taken over by guessing their passcode.
Often the passcode will be the mailbox number or a common number such as
1234.