Email encryption keeps messages safe from prying eyes.įor countries with heavy internal surveillance, email encryption is a necessity. It’s also the most resilient to being shut down: while Iran is able to shut down Telegram country-wide, shutting down email would be both extremely difficult and prohibitively heavy-handed. Many messenger apps offer end-to-end communication, but email remains the most popular method of communication. As the corporate use of private data grows, consumers are more and more interested in protecting the content of their sensitive communications.