对电子文档进行加密处理，接受方需具有相应安全证书，防止非法用户窃取文件信息；
Encrypting the electronic documents to which the receiver can have access only through corresponding safety certificates so as to avoid the access by illegal users.
昨天他发表这番言论之际，吉百利发布了一份致股东的反收购文件，敦促投资者不要让卡夫“窃取”他们的公司。
His comments yesterday came as Cadbury published a shareholder defence document which urged investors not to let Kraft "steal" their company.
EFS允许文件加密，以便保护保密的数据不会被攻击者以直接访问计算机的方式进行窃取。
This allows for file encryption in order to protect confidential data from attackers with physical access to the computer.
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