Proton

Privacy guides

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.
  • Privacy guides
Email was never designed to be secure, but you can still take steps to protect your inbox. We show you how in this article.
secure file sharing
  • Privacy guides
Need to share sensitive files with a colleague, friend, or family member? Here’s how to ensure you share files securely.
ways to securely send sensitive information via email
  • Privacy guides
Emails you send with most providers aren’t secure, but here’s how you can securely send sensitive information by email.
  • Privacy guides
Email encryption doesn’t have to be difficult. If you’re a beginner, we show you the easiest way of sending an encrypted email.
  • Privacy guides
This article explains what cloud storage is and how to make your cloud storage truly secure.
  • Privacy guides
This article explains what a secure email server is and the best way to send encrypted emails.
  • Privacy guides
Your digital files and photos can reveal a lot about you. We explain which files you should protect and how.
  • Privacy guides
We share eight tips that you can use to improve your cybersecurity and protect your information with Proton.
  • Privacy guides
In this article, we show you how to send documents securely via email.