Product Spotlight
Proton Authenticator
The simple and secure way to protect your accounts with two-factor authentication. From the trusted, privacy-focused team at Proton.
Why Use Proton Authenticator?
Secure your logins from password theft and phishing attacks with a 2FA app designed for maximum security and ease of use.
Strong Security
Protect your accounts with time-based (TOTP) and HMAC-based (HOTP) one-time passwords.
Open Source & Verified
Proton Authenticator is fully open source and has undergone independent security audits for your peace of mind.
End-to-End Encrypted Backup
Securely back up your 2FA codes with end-to-end encryption and restore them on new devices easily.
Seamless Integration
Works with most major online services that support 2FA, including Google, Facebook, and your Proton Account.
Privacy Focused
No ads, no trackers, no data collection. Your privacy is our priority, just like in all Proton products.
Easy to Use
A clean, simple interface makes it easy to add new accounts and generate codes. Security shouldn’t be complicated.
Passwords Alone Are No Longer Enough
Even strong passwords can be stolen or phished. Two-factor authentication is the industry standard for protecting your most sensitive accounts from unauthorized access.
Add a Crucial Layer of Defense
Proton Authenticator requires you to verify your identity with a second device (your phone), making it exponentially harder for an attacker to gain access, even if they have your password.
Phishing Attacks
Hackers create fake login pages to trick you into revealing your username and password, giving them full access to your account.
Data Breaches
Your password could be leaked in a data breach, allowing criminals to try it on all your other accounts.
Keyloggers & Malware
Malicious software on your computer can steal your passwords as you type them, bypassing even the strongest password policies.
Enable Strong 2FA in Three Easy Steps
Get started with Proton Authenticator and boost your account security in just a few moments.
Step 1: Install the App
Download Proton Authenticator for free on your iOS or Android device from the App Store or Google Play.
Step 2: Scan the QR Code
In the security settings of your favorite online service, choose to enable 2FA and scan the QR code with the Proton Authenticator app.
Step 3: Enter the Code
The app will generate a 6-digit code. Enter it on the website to confirm, and you’re all set! Your account is now protected.
Frequently Asked Questions
Find answers to common questions about Proton Authenticator.
Is Proton Authenticator free?
Yes, Proton Authenticator is completely free. We believe everyone deserves access to essential security tools.
Can I use it for accounts other than my Proton Account?
Absolutely. Proton Authenticator is a standard TOTP/HOTP app and works with all services that support this form of two-factor authentication, such as Google, Microsoft, Dropbox, and thousands more.
What happens if I lose my phone?
Proton Authenticator offers an optional, end-to-end encrypted backup of your 2FA seeds. If you enable this feature, you can easily restore your codes on a new device.
Upgrade Your Security Today
Take a simple, powerful step to protect your digital life from hackers and account takeovers. Download Proton Authenticator for free.