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Life & fun · August 27, 2018

KM

Krypton – make your phone a U2F Authenticator

Unphishable, zero-touch two-factor logins

Krypton – make your phone a U2F Authenticator launched on August 27, 2018 with 12 votes, #916 of 2,619 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 8 years on.

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In plain words

Krypton turns a smartphone into a U2F security key for two-factor authentication. It pairs securely with a computer to enable automatic sign-ins without typing codes or waiting for SMS messages, eliminating common phishing vulnerabilities. Users can optionally require a single tap for added security. The app implements the standardized FIDO U2F protocol and requires only a single setup scan to get started, simplifying the traditionally tedious process of enabling two-factor authentication across multiple accounts.

written from the facts on this page · September 2026

From the sources

No more mistyping, missing 30 second windows, or waiting endlessly for that SMS. Krypton securely pairs with your computer so that you don't have to touch your phone for each sign-in. Optionally, enable One tap sign-ins for enhanced security. SMS and authenticator app codes can easily be phished. Don't let that happen to you. Krypton protects you from phishing. Setting up two-factor can be time consuming and repetitive. Just scan once with Krypton. Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone. Krypton is built on top of an end-to-end verified and encrypted…from krypt.co

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