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A key component of secure digital communication

Digital security is playing an increasingly significant role in the business world. Various data security technologies must counteract ever more sophisticated cyber threats. When it comes to having a safe email, encrypted email is an especially widespread phenomenon. Today, encrypted email is considered a key component of secure digital communication.

In this blog, I will explore what encrypted email is, how it works, and how to ensure that one’s emails are encrypted with the latest security measures.

What is encrypted email?

Encrypted email is a type of email where the content of the message is encoded, so only those who have access to the necessary key or code can decrypt and read the content. Email encryption is often used to protect sensitive information such as personal details or business secrets. By encrypting emails, it is ensured that the content can only be read by the intended recipient, and unauthorised individuals cannot access the information.

Encrypted email typically requires that both the sender and recipient have access to an encryption key or code. This can happen automatically if both parties use an email client that supports encryption, or by manually sharing encryption keys and codes.

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How does encryption work?

Encryption transforms plaintext into encrypted text – also known as ciphertext – using an algorithm and a key. Only with the correct key can the ciphertext be decrypted back to its original form. There are two main types of encryption used in emails:

  • End-to-End Encryption: Ensures that only the sender and recipient can decrypt and read the content. Even email service providers do not have access to the content of the message. This type of encryption encrypts the mail both when it is transmitted and when it is subsequently stored on the mail servers.
  • Transport Layer Encryption: This encryption is also called TLS (Transport Layer Security). This type of encryption only encrypts the mail when it is transferred between mail servers.

Why is encrypted email important?

There are several reasons to use encryption for security when emailing.

  1. Data Security With the constant threat from cyber attacks, such as phishing attacks, encrypted email offers an additional layer of security by ensuring that only authorised parties can access the content of the email.
  2. Compliance For businesses in certain sectors, such as finance and healthcare, the use of encrypted email is often a requirement to comply with data legislation like GDPR.
  3. Privacy Personal information has become the currency of our time, and as it is subject to misuse, encrypted email provides a secure channel for communication by effectively protecting personal data.

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How to implement encrypted mail

Using encrypted email requires the use of software or services that offer end-to-end encryption. Some popular email clients, such as Microsoft Outlook, offer built-in encryption, but it’s important to research and understand the type of encryption they use and how the email client protects your data.

Looking to encrypt your mails?

As digital communication continues to be an integral part of conducting business, the need for email security becomes increasingly important. By using encryption when emailing, you can create the technical conditions necessary for sensitive information to remain protected. However, having a secure email requires more than just technology. It also necessitates the proper configuration of your email client and the right work practices when emailing.

At Safe Online, we have developed the email portal ShareSimple, which, unlike conventional email, creates a portal where files can be uploaded and downloaded. In this way, data is completely removed from the mail server. During the mail transfer, the mail is protected with TLS 1.2 and 2048-bit encryption.

Sebastian Allerelli
Founder & COO at Safe Online
Governance, Risk & Compliance Specialist
Follow me on LinkedIn to get tips on GDPR →


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