
3:00 AM PDT · July 31, 2025
Privacy-focused productivity instrumentality institution Proton released a caller authenticator app today, allowing users to log successful to services utilizing dynamically generated two-factor codes.
The free app is disposable connected each platforms starting today, including iOS, Android, Windows, Mac, and Linux. The app allows you to sync codes and accounts crossed devices. The institution said that conscionable for illustration its different products, Proton Authenticator is open-sourced and uses end-to-end encryption to protect personification data.
Users tin easy import login codes from different authentication apps, nan institution said. Plus, nan app automatically backs up codification and besides useful without immoderate net connection.

“Two-factor authentication is basal for everyone – not conscionable those who attraction astir their privacy. Proton Authenticator is built for anyone who wants a secure, transparent and convenient measurement to protect their accounts,” Eamonn Maguire, Head of Account Security astatine Proton, said successful a statement.
“We judge beardown information should ne'er travel astatine nan costs of your convenience aliases privacy. That’s why we’ve developed Proton Authenticator: to springiness users bid of mind that their 2FA codes are disposable wherever they request them, without relying connected Google aliases Microsoft. We’re putting users firmly successful power not only complete their data, but nan measurement they entree their online accounts,” he added.
Two-factor authentication utilizing an app provides users pinch an other furniture of information to forestall attackers from taking complete accounts. While SMS-based two-factor authentication is different option, it is often susceptible to SIM swapping attacks, successful which attackers could intercept your calls and messages.
Proton is connected a product-releasing spree. Earlier this week, nan institution launched a privacy-focused AI chatbot named Lumo, which doesn’t support immoderate speech records aliases usage personification information to train models.
Techcrunch event
San Francisco | October 27-29, 2025
Ivan covers world user tech developments astatine TechCrunch. He is based retired of India and has antecedently worked astatine publications including Huffington Post and The Next Web. You tin scope retired to him astatine im[at]ivanmehta[dot]com