"Subscribing someone to magazines and signing them up for embarrassing catalogs is an old trick, but it has limitations because it's physically difficult to do it on a large scale. But this attack exploits the automation properties of the Internet, the Web availability of catalog request forms, and the paper world of the post office and catalog mailings. All the pieces (that) are required for the attack to work."

"A scenario could be imagined where an attacker would do this to delay the arrival of an important letter, to wreak havoc on the postal system for political reasons, or even worse, to serve as a diversion for a terrorist act, such as the mailing of a contaminated letter."