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プライバシーガイド

What is email spoofing?
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Learn how to identify forged email messages and protect yourself against email spoofing, a common trick in phishing and spam emails.
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Daniel Huigens, the head of Proton’s cryptography team, explains how the latest crypto refresh makes PGP more secure.
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If you’re migrating from iPhone to Android, there are a few ways to transfer your data. Here are the top three methods.
What is the CAN-SPAM Act?
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Know your rights under the US CAN-SPAM Act to help you identify and beat spam and comply if you send marketing emails.
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CAPTCHAs perform a vital function, protecting websites from automated bots that can create fake accounts or DDoS attacks.
How to stop spam emails
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Learn how to beat annoying and potentially harmful spam and keep your email private and secure with Proton Mail.
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There are two easy ways to password protect an Excel file. This article explains how to encrypt files in Excel or using encrypted cloud storage.
What is email security?
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Learn about email security, types of email attacks, and 10 tips to secure your mailbox against common cyberthreats.
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Your email address is an identifier tech giants use to track you and exploit your personal data. Learn how to protect yours.
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Cloud storage and physical storage options have advantages and disadvantages. Learn more about each one.
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Google claims privacy should be available to everyone. But this claim requires a new definition of privacy that doesn’t hold up to scrutiny.