Free Software Foundation: It's no secret that your emails are not secure. Companies, governments, advertisers and others can read the content of your inbox if they want to, without even knowing it.
If you want to send something securely to someone else, you need to encrypt your emails.
The Free Software Foundation (Free Software Foundation) created a guide (Email Self-Defense) to teach you the basics of email encryption. The third edition of the guide is translated into Greek, while at the moment the 4th edition in English. The guide is aimed at users of GNU / Linux, Mac OS and Windows.
Your site shows you how to set up GnuPG in an email program like Thunderbird or IceDove. GnuPG (GNU Privacy Guard) is an open-source way to use encryption to secure your data. In addition to email, it can protect your files and your electronic identity. But the most common use of GnuPG is to secure your email.
Once you learn how to configure GnuPG in the first step, you will learn how to encrypt your emails with private keys.
The online wizard will also show you how to securely send these keys to the recipient so that only they can decrypt an email.
It's a very simple guide to encrypting email using an open template.
Before closing the wizard, send a message to friends asking them to participate in email encryption. Remember to include the ID of your public GnuPG key so that they can easily download your key.
It is also a good idea to add your keyprint to your email signature so that the people you correspond with know that you are receiving encrypted emails.
If all of the above seems excessive to you, there are some secure and encrypted email providers, but again, you trust your data to third parties.