Similar words: backer, cracker, slacker, knacker, hijacker, attacker, quackery, knickerbockers. Meaning: ['hækə(r)] 
n. 1. someone who plays golf poorly 2. a programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorism 3. a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm 4. one who works hard at boring tasks.
n. 1. someone who plays golf poorly 2. a programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorism 3. a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm 4. one who works hard at boring tasks. 
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91. All of the world are regarding the hurt aroused by hacker intrusion, information leakiness and virus flood as importance.
92. This hacker designed a computer virus that was hard to manage.
93. Program design, network technology, hacker attack and defense, and other e - books .
94. Also Saturday, a spokeswoman for the mission said its public Web site was back up after a hacker managed to change the site's lead story overnight.
95. Once it has its grips on the system, it proceeds to create an HTTP server and download malware onto the computer from hacker web sites.
96. Honeypot is a real system, which is leaky and specially used to be attacked by hacker.
97. A hacker could perform a memory dump at the right time and then gain access to this sensitive data.
98. It's a sunny April afternoon, and Lee is dressed in a monkey-head T-shirt from hacker outfitter ThinkGeek.
99. Install firewall program for computer, prevent individual account information to suffer hacker filch.
100. The paper says the alleged hacker is a Chinese "freelance security consultant in his 30s" who had published extracts of the attack code on the web.
101. Robert Lay : You hacker you. Thanks for always hooking me up[sentencedict.com/hacker.html], and flicking off paparazzi.
102. The move comes after part of a South Korea-U.S. operational plan was accessed by a hacker through a USB thumb drive used by an officer at the Combined Forces Command here.
103. In the meantime, it is searched and destroy at present the relatively popular firewall product on market, make a hacker OK inbreak easily user computer.