# Universal 2nd Factor

> open standard for two-factor authentication (2FA) using specialized physical devices

**Wikidata**: [Q18413454](https://www.wikidata.org/wiki/Q18413454)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Universal_2nd_Factor)  
**Source**: https://4ort.xyz/entity/universal-2nd-factor