How can usage be restricted to the rightful crowd?
One of the most basic examples of this problem is the access to
your own house. You want to let your spouse and offspring in
agile fashion. For example, credit companies sweep the credit report database,
assess who would be a good customer, and send via ordinary mail preapproved
credit cards. Those cards arrive with an associated credit line and can be used
right away. They are the favorite prey of criminals who steal from physical
mailboxes or go through the household trash (dumpster divers) in the hope
of ?¬?nding an offer that has been carelessly tossed out without having been
shredded.
If you are interested in knowing more about identity theft in the United States
today, refer to The Identity Theft Protection Guide, by Amanda Welsh, a good
book on the subject.
Passwords are
taken as a given. It
doesn??™t have to be
that way
Access control can
be realized in many
ways
30 The Problem
even when you are not around, but you de?¬?nitely want to prevent
others from entering without your explicit consent. The
lock-key combination is a very effective means of achieving
that. The lock prevents anybody from entering, apart from the
ones who owna copy of the key.
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