中文摘要：

某些网站将匿名处理后的社会网络数据公开发布,或者提供给科研机构、大学或者其他组织和个人使用,而这些数据往往侵犯了用户的隐私,但有关社会网络中个人信息安全和隐私保护的研究却处于起步阶段。综述了当前在线社会网络的研究成果,主要就社会网络及其隐私漏洞、信息泄露、再识别攻击、聚集攻击、推理攻击等进行了分析,并对今后的发展提出了预测,为社会网络的科研指出了可行的研究方向。

英文摘要：

Some social network sites publish anonymized social network data for special purposes. However,such kind of data publishing may cause potential privacy leak. But research on protecting user privacy has just started. This paper surveyed and discussed existing research on privacy protection in social networks and its privacy leak,information revelation,reidentification attack,mass attack,logic attack,etc. The article tried to predict future trends and pointed out study directions for the social networks.