斯诺登曝美XKeyscore互联网情报搜集服务器布局,中国沦陷

作战参谋019 收藏 0 71
近期热点 换一换

中国反恐与安全问题专家李伟1日对《环球时报》说,XKeyscore最值得中国注意的是,美国情报人员可以通过中文关键词对中国互联网舆论进行监听,中国网络论坛、自媒体和邮件内容是他们的监控重点。他们依据收集到的数据可以对中国网络舆论动向做出分析,也可以与美国对华政策产生紧密联系。李伟说,从图表上看,XKeyscore在中国境内的服务器像是在南部地区,中国也许可以端掉它,但美国势必还在华安插新的服务器。美国把中国视为最大的网络对手,如此提防中国是可以想象的。

铁血网提醒您:点击查看大图

The Guardian: NSA's XKeyscore tool is its 'widest reaching' system for collecting online data

Edward Snowden has said that he still has more information about the NSA than what he's already leaked, and we're now getting a look at another big piece of that. According to a new set of documents provided to The Guardian, the NSA is using a tool called XKeyscore that is said to be its "widest reaching" system for collecting information from the internet -- one that lets it examine "nearly everything a typical user does on the internet," as one presentation slide explains. That apparently includes both metadata and the contents of emails, as well as social media activity, which can reportedly be accessed by NSA analysts without prior authorization; as The Guardian notes, a FISA warrant is required if the target of the surveillance is a US citizen, but not if a foreign target is communicating with an American.

According to The Guardian, the amount of data collected is so large that content is only able to stored in the system for three to five days, or as little as 24 hours in some cases, while metadata is stored for 30 days. That's reportedly led the NSA to develop a multi-tiered system that lets it move what's described as "interesting" content to other databases where it can be stored for as much as five years. In a statement provided to The Guardian, the NSA says that "XKeyscore is used as a part of NSA's lawful foreign signals intelligence collection system," and that "allegations of widespread, unchecked analyst access to NSA collection data are simply not true. Access to XKeyscore, as well as all of NSA's analytic tools, is limited to only those personnel who require access for their assigned tasks." The agency further adds that "every search by an NSA analyst is fully auditable, to ensure that they are proper and within the law."


本文内容于 2013/8/8 3:34:13 被作战参谋019编辑

0
回复主贴
聚焦 国际 历史 社会 军事 精选
0条评论
点击加载更多

发表评论

更多精彩内容

热门话题

更多

经典聚焦

更多
发帖 向上 向下