Definition
💡 Email encryption is a method for encoding message data. It basically converts plain text into what’s called ciphertext making it unreadable. To then make the content readable again, it must be decoded using a private key.
Email users don’t normally have to perform a physical action to encrypt or decrypt the messages; it takes place in the backend by the service providers.
Why is email encryption important?
Email encryption is important for preventing unauthorized persons from accessing message content. It is especially crucial when transmitting sensitive information via email.
What does email encryption do?
Email encryption encodes communications using one of two methods:
Transport-level encryption uses a Transport Layer Security (TLS) protocol. The process encrypts and decrypts the messages as well as authenticates the sending and receiving servers to prevent emails from being intercepted.
End-to-end encryption (E2EE) is a bit different in that its process doesn’t take place during transit. Instead, it encrypts the message between the email sender and recipient, and only those two parties can decrypt the message.
What are email encryption certificates?
An email encryption certificate enables secure email communication. It is a digitally signed security file allowing encryption of the message content and attachments. It also verifies that the sender is who they claim, and that the message hasn’t been altered since it was sent.
Basically, the email encryption certificate authenticates the sender to the receiver and protects the integrity of the message data as it’s transmitted.
Why use email encryption?
Email encryption can not only keep your messages safe, but you as well. Any identifiable information viewed by an authorized person could be detrimental for both individuals and corporations.
If a message is intercepted that hasn’t been encrypted, its contents are readable. This can lead to an unauthorized person obtaining personal information such as financial or health details or company information like trade secrets and other confidential business data.
