Question

How to Make Your Email Really Secure

Email is the most used communications medium for business and for many of us at home too, but few people outside IT know how to truly secure their email. Here's a quick look at some of the ways you can carry on encrypted(加密的) conversations.1.

Your Gmail messages being sent are encrypted. However, unless the receiver is reading email using a Google browser(浏览器) or Gmail app, they don't stay encrypted. And, of course, Google itself freely admits that its software reads all of your email for advertising purposes. Some programs, like the paid version of Outlook, offer an encryption feature. 2. It requires that you and your receiver exchange something called a digital signature.

3. The disadvantage—and you knew there would be one—is that your receiver must also subscribe to that service, or enter a password to open each message you send. They're fine if your only secure conversations are with one or two people. 4.

Another option for those wishing to send secure text correspondence: Don't use email at all. 5. These apps encrypt your messages on both ends and throughout their sending. Here again, though, they limit your communication to people who also have and use those same apps.

A.Protect the machine you use email on.

B.Free accounts limit the size of your messages and attachments.

C.But setting it up takes much trouble, and surely not for the masses.

D.Instead, use a chat program like CryptoCat, ChatSecure, or PQChat.

E.But you're never going to persuade the whole world to sign up to get your emails.

F.Email providers like Tutanota, and Protonmail automatically encrypt all the mail you send.

G.The concern that your words could be stolen and used against you someday will be solved.

Answer

1.G

2.C

3.F

4.E

5.D

【解析】

这是一篇说明文。电子邮件是商务中最常用的沟通媒介，对我们很多人来说也是如此，但很少有人知道如何真正保护他们的电子邮件。文章主要介绍了一些对电子邮件的保护措施。

1.

根据上文Here's a quick look at some of the ways you can carry on encrypted conversations.可知以下是一些进行加密对话的方法。由此可知，上文提到了本文是要介绍加密邮件会话的方法，这样一来就不用担心自己的会话被人窃取，对自己不利。故G选项“担心你的对话有一天会被人窃取并对你不利的担忧将会得到解决”符合上下文语境，故选G。

2.

根据后文It requires that you and your receiver exchange something called a digital signature.可知它要求你和你的接收者交换一种叫做电子签名的东西。由此可知，付费版的Outlook提供的加密功能要求发送者和接受者都要使用电子签名，这是很麻烦的。故C选项“但是，设定加密会非常费力，尤其对于民众”符合上下文语境，故选C。

3.

根据后文The disadvantage—and you knew there would be one—is that your receiver must also subscribe to that service, or enter a password to open each message you send.可知您知道它的缺点是，您的接收者还必须订阅该服务，或者输入密码才能打开您发送的每条消息。由此可知，本句是提到了一种给邮件加密的服务，后文则是在说明这种服务的缺点。故F选项“像Tutanota和Protonmail等邮件服务商会自动给你发送的所有邮件进行加密”符合上下文语境，故选F。

4.

根据上文They're fine if your only secure conversations are with one or two people.可知如果你只和一到两个人进行安全对话，还可以接受的。由此可知，这种服务针对一到两个人的安全对话还可以，但是人数一多就显得不显示了，毕竟你不可能说服全世界都以此方式来接收你的电子邮件。故E选项“但你永远也不可能说服全世界都以此方式来接收你的电子邮件”符合上下文语境，故选E。

5.

根据后文These apps encrypt your messages on both ends and throughout their sending.可知这些应用程序在两端和发送过程中进行加密。由此可知，本句是在列举一些聊天程序。故D选项“相反，使用聊天程序，如CryptoCat, ChatSecure，或PQChat”符合上下文语境，故选D。