目前，网络和信息安全已成为一个普遍关注的问题。
At present, the security of network and information has been paid much attention prevalently.
因为通常不可能追踪到攻击者，对互联网站和网络基础结构的攻击，及其对安全信息的危害，是一个异常棘手的问题。
Attacks on Internet sites and infrastructure, and the compromise of secure information, pose a particularly tricky problem because it is usually impossible to trace an attack back to its instigator.
同样，有网络和无线安全技能的人群以及那些具有认证信息系统安全专业证书的也备受青睐。
There's also strong interest in people with network and wireless security skills, as well as those with Certified Information Systems security Professional accreditation.
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