Review the excerpt from The Code Book
If Eve parks a van outside Alice's house, she can use
sensitive tempest equipment to identify each individual
keystroke that Alice makes on her computer. This
would allow Eve to intercept the message as it is typed
into the computer, before it is encrypted. To defend
against tempest attacks, companies are already
supplying shielding material that can be used to line the
walls of a room to prevent the escape of
electromagnetic signals.
In this excerpt, the author explains
O why computers are easily stolen.
O why keyboards are unsanitary
how computer security can be broken.
how friends share secret messages.
