Proton

Privacy guides

Send encrypted email in Gmail
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  • Privacy guides
Learn how to send an encrypted email in Gmail using S/MIME or CSE, and the best alternative if you’re looking for genuine privacy.
why use private email
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  • Privacy guides
Privacy online is a basic human right that you need to protect yourself and ultimately defend your freedom, whoever you are.
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  • Privacy guides
We look at popular cryptocurrency scams, explain how they work, and offer advice on how you can avoid them.
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  • Privacy guides
We use end-to-end encryption to secure your emails. Here's what end-to-end encryption means, and how it protects you.
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  • Privacy guides
When you use DNA genetic testing services like 23andMe or AncestryDNA, your data can be used in ways you can’t always control.
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  • Privacy guides
Despite its popularity, SMS is a dangerously insecure way to send text messages. We examine why and discuss what you can do about it.
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  • Privacy guides
SMTP, IMAP, and POP3 are protocols used by email clients to send and receive emails. We take an in-depth look.
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  • Privacy guides
Fingerprinting is a devious way to identify you on the internet and can be very hard to prevent
What is personally identifiable information
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  • Privacy guides
What is personally identifiable information, and how can it be used against you? We go over what PII stands for, and how you can protect it.
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  • Privacy guides
If you’re still holding on to an embarrassing email address, it’s time to change it. Learn how to change your email address in five easy steps.
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  • Privacy guides
Learn the different ways to send an email to multiple email addresses with our explainer on To, CC, and BCC.