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史諾登揭美國國安局密件 比特幣活動為首要追蹤目標
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Topic: 史諾登揭美國國安局密件 比特幣活動為首要追蹤目標 (Read 124 times)
fbsum-caca
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史諾登揭美國國安局密件 比特幣活動為首要追蹤目標
March 22, 2018, 10:00:18 AM
#1
最著名的揭秘者史諾登(Edward Snowden)將美國國安局 (National Security Agency) 追蹤加密貨幣用戶的安全文件,交付給線上新聞媒體 The Intercept,顯示 NSA 正在世界各地搜集比特幣發送與接收者的身份,至少一個神秘消息來源大力提升了 NSA 收集與分析全球網路數據的能力。
這些文件多數集中在 2013 年,調查內容遠超過僅是查看對公鏈帳本的查看,他們搜集使用者的電腦資訊,包含:密碼資訊、網路活動和俗稱 MAC 地址的媒體存取控制位址,是一個用來確認網路裝置位置的位址。另外據文件 顯示 ,「比特幣是調查第一優先」。
文件顯示「比特幣是調查第一優先」。
該文件顯示 NSA 對於在一個稱為「Provider user full.csv」的檔案中存有比特幣相關信息,具有強大搜索能力,XKeyScore 可能是其利用來搜集的系統並存有各種歸檔資訊。代號為 OAKSTAR 的程序搜集來自中東、歐洲、南美洲、亞洲的數據,根據文件中「完全監視」的描述,受追蹤的數據都在被檢查與部分保留。
根據描述 OAKSTAR 的子項目 MONKEYROCKET,從 2012 年夏天起以提供非西方匿名網路服務為包裝,在中國及伊朗擁有大量的用戶群,在網路上偽裝埋伏,吸引恐怖主義份子使用此瀏覽工具,讓 NSA 能搜集數據。
「這表示美國是不可信的。」Johns Hopkins 大學資訊安全研究所助教 Matthew Green 說道。Zcash 的創辦人 Green 對此也表示,這將讓以太幣、瑞波幣和其他加密貨幣顯得毫無價值。「即使你相信比特幣的底層技術,但你仍必須相信你的網路連線,假使你被 NSA 盯上了那麽將會是個問題。」Green 推測 MONKEYROCKET 的瀏覽產品,類似提供使用者 VPN 讓用戶在網路上的活動不會被鎖定,但同時在服務的背後紀錄你的數據。儘管比特幣在使用者隱私方面有一定聲譽,但這個 NSA 被揭露的隱私追蹤事件,除了交易私人化以外,你還必須確認網路連線都是安全的。
Liberty Reserve 與 Silk 都是加密貨幣犯罪的場域,負責人均遭判刑,儘管在法庭上聯邦調查局都否認得到 NSA 的舉證協助,但皆遭質疑其舉證的不當手段。在犯罪暗網 Silk 創始人 Ross Ulbricht 被捕前半年,NSA 正在追蹤比特幣用戶,並且監控 Liberty Reserve。
比特幣白皮書中說道,大眾可以看到有人向他人發送一筆金額,但不需因此交換聯絡信息。但目前看來,有隱私需求的使用者,將會走向隱私取向的加密貨幣。
budong
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Re: 史諾登揭美國國安局密件 比特幣活動為首要追蹤目標
March 22, 2018, 04:52:58 PM
#2
粉碎棱镜(prism-break.org),由 Peng Zhong 设立的网站,与电子前哨基金会并没有任何正式关系。[37]“粉碎棱镜”列出众多非盈利组织所撰写发布的各种自由软件,从取代Windows和Mac OS的操作系统,到各式各样的常用软件,以及去中心化的网路服务(电子邮件、云端储存和运算等等),都列出了功能、优缺点的比较,以便让人们取代涉及棱镜计划的公司,以及他们所制作的、以盈利为目的或者封闭源码之商业软件和服务,来保护隐私,躲避例如美国、英国政府的监控。 ------维(稳)基百科
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fantasyoWU
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Re: 史諾登揭美國國安局密件 比特幣活動為首要追蹤目標
March 24, 2018, 08:52:30 AM
#3
比特币地址匿名,怎么追查啊?持有者不公开地址那他没办法啊
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