题目内容
Using publically available databases, information resellers create _______ and sell them to direct marketers, fundraisers, and others.
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_______ is the illegal assumption of someone's identity for the purposes of economic gain.
_______ store information about the current session, your general preferences, and your activity on the website.
_______ are used by advertising companies to keep track of your web activity as you move from one site to the next.
A(n) _______ is someone who gains unauthorized access to computer systems.
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