雇员可能对公司有攻击动机，虽然雇员有非常高的内部访问和系统知识级别，但他们的资源和黑客技能可能很有限。
An employee may have a grudge against the company, and while employees have tremendous levels of internal access and system knowledge, they probably have limited resources and hacking skill.
白帽黑客专家，指公司雇佣专家去测试他们的官网网站或email系统是否易受攻击。
White-hat hacking Experts hired by companies to test their websites or email systems for vulnerabilities.
媒体公司只关注那些攻击计算机系统的黑客，而往往忽视那些计算机的保卫者，所以有些人就使用术语“黑客”表示只进行攻击的黑客。
Media companies only concentrate on the hackers who attack computer systems rather than the defenders, so some people use the term "hacker" to mean only attacking hackers.
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