Un certain nombre  de recommandations pour se « protéger », rester anonyme, etc…

Use public-key encryption

If you wish to keep the contents of your email private, and confirm the identity of people who send you email, you should download and install public-key encryption software. This option is only available if you have your own computer. Public-key encryption uses a combination of a private key and a public key. The private key is known only by you, while the public key is distributed far and wide. To send an encrypted message to someone, you encrypt the message with their public key. Only their private key will be able to decrypt your message and read it. The universal standard for public-key encryption is Pretty Good Privacy (PGP) and GNU Privacy Guard (GPG). GPG is Free Software, while PGP is a proprietary product (although there are many freeware versions available). Both work interchangeably and are available as convenient add-ons to mail clients for Linux, Mac, and Windows. For information configuring your mail client to use public key encryption, see our mail client tutorial pages. In particular, see the tutorials for Apple Mail and Thunderbird. Otherwise, you should refer the to documentation which comes with your particular mail client. Although it provides the highest level of security, public-key encryption is still an adventure to use. To make your journey less scary, we suggest you keep these things in mind:

  • Be in it for the long haul: using public-key encryption takes a commitment to learning a lot of new skills and jargon. The widespread adoption of GPG is a long way off, so it may seem like a lot of work for not much benefit. However, we need early adopters who can help build a critical mass of GPG users.
  • Develop GPG buddies: although most your traffic might not be encrypted, if you find someone else who uses GPG try to make a practice of communicating using only GPG with that person.
  • Look for advocates: people who use GPG usually love to evangelize about it and help others to use it to. Find someone like this who can answer your questions and help you along.

Although you can hide the contents of email with public-key encryption, it does not hide who you are sending mail to and receiving mail from. This means that even with public key encryption there is a lot of personal information which is not secure. Why? Imagine that someone knew nothing of the content of your mail correspondence, but they knew who you sent mail to and received mail from and they knew how often and what the subject line was. This information can provide a picture of your associations, habits, contacts, interests and activities.

Source: Riseup!


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