denial of service (DOS) attack

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Cracker or hacker attack on a computer system or website, aimed at disrupting its normal functions. A common method used in DOS attacks is to deluge the system or site with a flood of messages that drastically slow down its response time, or overwhelm its data handling capacity resulting in a system crash. In many countries a DOS attack is a criminal offense even if attempted as a prank. See also active attack and passive attack.

Use 'denial of service (DOS) attack' in a Sentence

We got a couple of friends together and loaded up a program designed to constantly refresh this kid's webpage in a denial of service attack, in order to shut down the server.
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We learned we were vulnerable to a denial of service attack so we increased our funding to the budget of our IT department.
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I realized that we were under a denial of service attack and would have to wait to access the webpage that we really wanted to see.
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