![]() ![]() The recipient can then check this with the certificate authority (CA) that gave them the certificate to make sure the sender is legitimate. Alongside encrypting your messages, you can also sign emails with the S/MIME certificate. Secure/Multipurpose Internet Mail Extensions (S/MIME) is the encryption protocol preferred by businesses with their own mail servers. Most email platforms and third-party encryption software will use one of two protocols: S/MIME or PGP/MIME. Types of Email Encryption: S/MIME vs PGP/MIMEĪlthough it isn’t necessary to know exactly how your email encryption works, understanding the differences between the most common protocols can be useful. This means that your data is obscured even while the email server handles it, so only the intended recipient can read it. In this case, you should use end-to-end encryption. Because it’s decrypted when it reaches the email server, there’s potential for a third-party to access your email through a data breach or court subpoena.Īlthough this is incredibly unlikely, some information is too sensitive to take that risk. However, it can only protect the data while it’s in transit. TLS encryption is one of the best ways to protect your emails from cybercriminals, and that’s why practically all websites use it. If you’re interested, you should read our full guide to email security to find out more. However, encryption can get quite complex, and the specifics of how it works varies between provider and protocol. Each way has different benefits, and both work well as long as the keys are kept safe. With asymmetric encryption, things get a bit more complicated, where you can use both a private key and a public key. With symmetric encryption, you can use a private key for both encryption and decryption. You need to have the right key to read the text, otherwise it just appears to be nonsense. Generally, email encryption works by taking the plain text of your email and scrambling it with a string of characters known as a key. That way you can hide the content from everyone but your intended recipients. However, if you’re serious about privacy - for example, if you are sending business emails with sensitive information - you should consider protecting your emails with end-to-end encryption. Luckily, most modern email providers will use an SSL/TLS layer to protect the data while it’s in transit, which limits how vulnerable you are to certain attacks - even if you’re on public WiFi. Although you can encrypt most services, the specific email platforms that we’ll be looking at in this article are:Įmails aren’t exactly the most secure way to send information, and they often act as a major attack vector for hacking and fraud. Plus, even if it doesn’t come with its own method, you can always use third-party apps. ![]() To make encryption as easy as possible, most providers have some tools to help you. ![]() Review Visit ProtonMail 30-days money-back guarantee How to Encrypt Email: What You Need to Know However, if you’re sending more sensitive information, you should use end-to-end email encryption for the extra protection. However, though unlikely, it is still possible for a determined criminal or the email service itself to read the data while it’s stored on the servers.Īs long as an email service uses a trustworthy encryption protocol - which most secure web browsers and desktop email clients do - you should be safe to use it to protect most of your messages.
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