Proton

プライバシーガイド

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.
What is data privacy?
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Data privacy means protecting your personal data from those who shouldn’t have access. Learn how to protect yours.
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What are the security issues in cloud computing? Learn about the risks of cloud storage and how to protect your data.
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We explain how the dark web actually works and how you can access it safely.
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Threads collects reams of personal data, and its lack of privacy protections appears to be illegal in Europe. Here’s what we know so far.
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写真を送信する最も安全な方法はエンドツーエンド暗号化です。写真を非公開で保存・共有する4つの方法をご紹介します。
How to block emails
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Learn how to stop unwanted emails on Gmail, Outlook, Proton Mail, Yahoo Mail, Apple Mail, and Thunderbird and use aliases to hide you email.
What is Authenticated Received Chain (ARC)?
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Authenticated Received Chain (ARC) allows email providers to verify that emails are genuine when forwarded or sent from a mailing list.