Proton

Privacy guides

  • Privacy guides
Cloud storage lets you share large files quickly, back up your data, and more. Read on to find out if you should use cloud storage.
how to password protect pdf header image
  • Privacy guides
PDFs often contain sensitive information. Here’s how to protect PDFs with a password and securely share them with anyone.
can emails be traced
  • Privacy guides
Email providers, ISPs, and law enforcers have ways to trace and track you through your emails. Here’s how to stay private online.
what is ciphertext
  • Privacy guides
Learn all about ciphertext (encrypted text) and how it protects your privacy and secures online communications, including encrypted email.
  • Privacy guides
We explain the different types of encryption for cloud storage, and why end-to-end encryption (e2ee) is the best for your files.
  • Privacy guides
Data breaches leak millions of emails every year. Learn how to check if your email has been leaked and how you should respond.
  • Privacy guides
Jack Crompton, an engineer on our Web Core team, explains how we've enabled data recovery without compromising your privacy.
  • Privacy guides
Gmail makes you pay for its free account with your data and privacy. Learn how to delete your Gmail account and reclaim your privacy.
  • Privacy guides
Your inbox contains sensitive information about your life. Here are five ways to encrypt your emails and keep them safe from third parties.
send large files securely
  • Privacy guides
Most email services aren’t secure and limit attachment file sizes. Here’s how to send large files securely for free.
  • Privacy guides
If you're worried about your email security, use these nine top tips to secure your messages and keep them safe.