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en
  • ガイド
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?
en
  • ガイド
Data privacy means protecting your personal data from those who shouldn’t have access. Learn how to protect yours.
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  • ガイド
What are the security issues in cloud computing? Learn about the risks of cloud storage and how to protect your data.
  • ガイド
ダークウェブの実際の仕組みと、安全にアクセスする方法について解説します。
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  • Proton Mail
  • 製品アップデート
Proton Mail's new Tracking Links Protection feature removes known tracking link parameters, letting you click links without surveillance.
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  • Proton Pass
  • 製品アップデート
Proton Pass’s code has been made open source and passed an audit carried out by the security experts at Cure53.
en
  • ガイド
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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  • Proton Drive
  • 製品アップデート
The Proton Drive Windows app lets you easily sync your files and optimize your storage. Download it today.
  • ガイド
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
en
  • ガイド
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)?
en
  • ガイド
Authenticated Received Chain (ARC) allows email providers to verify that emails are genuine when forwarded or sent from a mailing list.