When it sends your messages, it uses the standard Secure Sockets Layer (SSL) to protect your data in transit. You may remember hearing that Gmail always uses a secure HTTPS connection. Both products come from the same company, Proton Technologies, and you can save money with a subscription that bundles both products. If the ProtonMail name sounds familiar, you're probably thinking of ProtonVPN, a top VPN service that's strongly focused on physical security. PreVeil and Skiff are our Editors' Choice email encryption services.

That said, PreVeil gives you equally powerful encryption at no cost, and Skiff, also free, adds encrypted collaboration and file sharing. When you communicate with other ProtonMail users, you get end-to-end encryption. ProtonMail stores your data using zero-access encryption, which means nobody but you can access it-neither a dishonest employee nor a lawyer brandishing a subpoena. You can use ProtonMail at no cost or pay a fee to remove the free edition’s limits and enable more features. If that sounds creepy to you, consider switching to an encrypted email provider that puts your security first, like ProtonMail. Just because you don’t get a bill for your webmail account doesn’t mean it’s free: You pay by allowing the provider to mine your messaging for data that helps target ads (among other things). How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.

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