At present, the relatively more mature development of the new social application mode mainly includes Self-destruct Social Network Model, Acquaintance Real -name Social Network Model, Acquaint-ances Anonymous Social Network Mode,Stranger Social Network Model. The services provided by these new social applications are not the same, but compared with the traditional social application mode, there is a com-mon feature which is the privacy, so that they can be referred to as private social network. The existing inter-personal communication, mass communication, organizational communication, mass communication and politi-cal communication will be deeply affected by private social networks. Private social network will also reform the existing human information communication system. The concealment of the private of social has caused governance blind area, and the spread of bad information in the private social networks will threaten the na-tional security to a certain extent.%目前，发展较为成熟的新型社交应用模式主要包括阅后即焚社交网络模式、熟人实名社交网络模式、熟人匿名社交网络模式、陌生人社交网络模式等。这些新型社交应用所提供的服务功能各不相同，但与传统社交应用模式相比，有一个共同的特征就是“私密化”，可将其统称为“私密社交网络”。私密社交网络将对现有的人际传播、群体传播、组织传播、大众传播和政治传播产生深刻影响，私密社交网络将革新现有的人类信息传播体系；私密社交网络自身“隐蔽性”带来治理盲区，私密社交网络中不良信息泛滥，在一定程度上会威胁国家安全。
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