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meta_title: "Why Email Isn't the Best Choice for Privacy and Security - Privacy Guides" meta_title: "Warum E-Mail nicht die beste Wahl für Privatsphäre und Sicherheit ist - Privacy Guides"
title: Email Security title: E-Mail-Sicherheit
icon: material/email icon: material/email
description: Email is inherently insecure in many ways, and these are some of the reasons it isn't our top choice for secure communications. description: Email is inherently insecure in many ways, and these are some of the reasons it isn't our top choice for secure communications.
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Email is an insecure form of communication by default. You can improve your email security with tools such as OpenPGP, which add End-to-End Encryption to your messages, but OpenPGP still has a number of drawbacks compared to encryption in other messaging applications, and some email data can never be encrypted inherently due to how email is designed. E-Mail ist von Natur aus eine unsichere Form der Kommunikation. Du kannst deine E-Mail-Sicherheit mit Tools wie OpenPGP verbessern, die Ende-zu-Ende-Verschlüsselung zu deinen Nachrichten hinzufügen, aber OpenPGP hat im Vergleich zur Verschlüsselung in anderen Messaging-Anwendungen eine Reihe von Nachteilen. Auch können einige E-Mail-Daten aufgrund der Art und Weise, wie E-Mails konzipiert sind, niemals von sich aus verschlüsselt werden.
As a result, email is best used for receiving transactional emails (like notifications, verification emails, password resets, etc.) from the services you sign up for online, not for communicating with others. Daher sind E-Mails am besten geeignet, um Transaktions-E-Mails (wie Benachrichtigungen, Bestätigungs-E-Mails, Passwortrücksetzungen usw.) von den Online-Diensten zu empfangen, für die du dich anmeldest, und nicht für die Kommunikation mit anderen.
## Email Encryption Overview ## Übersicht zur E-Mail-Verschlüsselung
The standard way to add E2EE to emails between different email providers is by using OpenPGP. There are different implementations of the OpenPGP standard, the most common being [GnuPG](https://en.wikipedia.org/wiki/GNU_Privacy_Guard) and [OpenPGP.js](https://openpgpjs.org). Die Standardmethode zum Hinzufügen von E2EE zu E-Mails zwischen verschiedenen E-Mail-Anbietern ist die Verwendung von OpenPGP. Es gibt verschiedene Implementierungen des OpenPGP-Standards, die bekanntesten sind [GnuPG](https://en.wikipedia.org/wiki/GNU_Privacy_Guard) und [OpenPGP.js](https://openpgpjs.org).
There is another standard which is popular with business called [S/MIME](https://en.wikipedia.org/wiki/S/MIME), however, it requires a certificate issued from a [Certificate Authority](https://en.wikipedia.org/wiki/Certificate_authority) (not all of them issue S/MIME certificates). It has support in [Google Workplace](https://support.google.com/a/topic/9061730) and [Outlook for Web or Exchange Server 2016, 2019](https://support.office.com/article/encrypt-messages-by-using-s-mime-in-outlook-on-the-web-878c79fc-7088-4b39-966f-14512658f480). Es gibt noch einen anderen, bei Unternehmen beliebten Standard namens [S/MIME](https://en.wikipedia.org/wiki/S/MIME), für den jedoch ein von einer [Zertifizierungsstelle](https://en.wikipedia.org/wiki/Certificate_authority) ausgestelltes Zertifikat erforderlich ist (nicht alle von diesen stellen S/MIME-Zertifikate aus). It has support in [Google Workplace](https://support.google.com/a/topic/9061730) and [Outlook for Web or Exchange Server 2016, 2019](https://support.office.com/article/encrypt-messages-by-using-s-mime-in-outlook-on-the-web-878c79fc-7088-4b39-966f-14512658f480).
Even if you use OpenPGP, it does not support [forward secrecy](https://en.wikipedia.org/wiki/Forward_secrecy), which means if either your or the recipient's private key is ever stolen, all previous messages encrypted with it will be exposed. This is why we recommend [instant messengers](../real-time-communication.md) which implement forward secrecy over email for person-to-person communications whenever possible. Selbst wenn du OpenPGP verwendest, unterstützt es keine [Forward Secrecy](https://en.wikipedia.org/wiki/Forward_secrecy), d. h. wenn entweder dein privater Schlüssel oder der des Empfängers gestohlen wird, sind alle vorherigen Nachrichten, die damit verschlüsselt wurden, offengelegt. Aus diesem Grund empfehlen wir [Instant Messenger](../real-time-communication.md) mit Forward Secrecy, für persönliche Kommunikation, wann immer möglich, anstelle von E-Mails.
## What is the Web Key Directory standard? ## Was ist der Web Key Directory Standard?
The Web Key Directory (WKD) standard allows email clients to discover the OpenPGP key for other mailboxes, even those hosted on a different provider. Email clients which support WKD will ask the recipient's server for a key based on the email address' domain name. For example, if you emailed `jonah@privacyguides.org`, your email client would ask `privacyguides.org` for Jonah's OpenPGP key, and if `privacyguides.org` has a key for that account, your message would be automatically encrypted. The Web Key Directory (WKD) standard allows email clients to discover the OpenPGP key for other mailboxes, even those hosted on a different provider. Email clients which support WKD will ask the recipient's server for a key based on the email address' domain name. For example, if you emailed `jonah@privacyguides.org`, your email client would ask `privacyguides.org` for Jonah's OpenPGP key, and if `privacyguides.org` has a key for that account, your message would be automatically encrypted.