Secure/Multipurpose Internet Mail Extensions, or S/MIME, is the standard built-in encryption protocol often found on most email providers and devices, including Gmail, Outlook, and iOS devices. It’s a fundamental part of email security measures, and there are two main types of email encryption: S/MIME and PGP/MIME. Types of Email EncryptionĮmail encryption is a preventive measure to ensure that even if a hacker managed to get into your network, they wouldn’t be able to read your email correspondence. They can also attach malicious attachments, inject malware, alter the content of the email itself, and even hijack your email account. Hackers can leverage content gained from your emails as fodder to create a more convincing phishing attempt. Email encryption is the process of turning your email messages and network into encrypted content using encryption keys.Įncrypted content is like a puzzle that recipients can only solve with the correct key.Įmail encryption works using the PKI (Public Key Infrastructure) framework, which relies on both symmetric and asymmetric cryptography to secure the content of your emails. Without any encryption, hackers can easily look at the information you’re sending and change it as they wish. Standard encryption for messages and the network is necessary to prevent hackers from intercepting your email messages. In fact, email is remarkably vulnerable considering it’s one of the most used communication channels worldwide.Īccording to PurpleSec, targeted emails (or spear phishing) is reported to be used in 91% of successful data breaches and 95% of all enterprise networks. While it’s convenient, sending information via email communications has its risks. Before remote work became common, businesses relied heavily on email to communicate. People sent an incredible 306 billion messages via email in 2020.
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