# Privacy guides

Apr 22, 2026

- Privacy guides

[How an activist infiltrated two US militias and covered his digital tracks](/content/blog/militia-infiltration-video/index.html)

In the first video of our Witness Protection series, find out how one anonymous activist infiltrated some of the most dangerous militias in the US.

Apr 10, 2026

- Privacy guides

[What are the alternatives to age verification?](/content/blog/age-verification-alternatives/index.html)

Explore alternatives to online age verification, from parental controls to zero-knowledge proofs, and how they can protect children without exposing personal data.

Apr 8, 2026

- Privacy guides

[What age verification actually means (and why the term is misleading)](/content/blog/age-verification/index.html)

What is age verification? Learn how age verification systems, software, and age checks work, including age estimation, age filters, and privacy risks.

Mar 25, 2026

- Privacy guides

[How to stop apps running in the background on Android](/content/blog/how-to-stop-apps-running-in-background-android/index.html)

Find out how to stop apps running in background Android processes, and read our tips to keep your phone more secure.

Mar 23, 2026

- Privacy guides

[Passkey vs password: What is the difference?](/content/blog/passkey-vs-password/index.html)

Discover how passkeys work, why they beat passwords on security and usability, and when you still need a password.

Mar 18, 2026

- Privacy guides

[What is an email address?](/content/blog/what-is-email-address/index.html)

What is an email address, really? Discover how it works, what makes one valid, and simple tips to keep yours private.

Mar 18, 2026

- Privacy guides

[Android vs. iOS security: Which operating system is more secure?](/content/blog/android-vs-ios-security/index.html)

We take an in-depth look at whether Android or iOS is more secure. It's a complex question with nuances on both sides.

Mar 11, 2026

- For business
- Privacy guides

[What is an eavesdropping attack? Everything you need to know](/content/business/blog/eavesdropping/index.html)

Eavesdropping attacks can be levied at individuals and businesses, but how do they work? We explain how to protect against them.

Mar 10, 2026

- Privacy guides

[OpenAI trains on your data, but there’s a free, private ChatGPT alternative](/content/blog/chatgpt-alternative/index.html)

ChatGPT comes with privacy and security risks for your data. But there's a private ChatGPT alternative that's safe to use.

Mar 5, 2026

- Privacy guides

[Is ChatGPT safe to use? Here’s what you should know.](/content/blog/is-chatgpt-safe/index.html)

Is ChatGPT safe to use? Learn the privacy, security, and business risks of AI assistants, what not to share, and a private alternative.

Mar 3, 2026

- Privacy guides

[The Proton guide to privacy at protests](/content/blog/how-to-protect-privacy-at-protests/index.html)

Protesters can expose personal information that puts them at risk. Here’s how to keep your identity private and your devices secure at a demonstration.