本书内容共9章，包括网络空间安全、网络协议基础、密码学与应用、网络安全防范、操作系统安全、数据安全与内容安全、互联网安全、物联网安全、新技术安全，并在相应章节中对网络空间安全基本概况与发展现状、基于TCP/IP的互联网协议基础、人工智能与大数据安全等知识内容与热点技术做了阐释。
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