Messages are fully encrypted using open source code for complete transparency. ProtonMail uses the latest research and technology to ensure complete security for your emails. ProtonMail Bridge allows using other mail clients.Since the company was founded in 2013, it has become the world’s largest secure email provider with more than one million users. This group of technical-minded individuals started the company thanks to a record-breaking crowdfunding scheme. The founding team at ProtonMail met while they worked at CERN, the European Organisation for Nuclear Research. This equates to your emails being physically and legally absolutely secure.

The company is already subject to the strict privacy laws in Switzerland and its mission to provide the utmost security. ProtonMail servers are in Europe’s most secure data center, 3,300 feet (1,000 meters) under solid rock. The creators used their technical expertise to develop a safe and anonymous email system, including other products, such as Proton VPN. The group is passionate about privacy and protecting the civil liberties of individuals online. ProtonMail is a web-based secure email service created by a group of engineers, developers, and scientists in Switzerland.

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