Clef (app)

Clef is a San Francisco based technology company, known for developing a mobile app that creates a two-factor authentication for websites. It allows users to access sites with a single login password management service which stores encrypted passwords in private accounts. It has a standard verification method that requires access to data on the mobile phone to confirm the user’s identity. The application requires a Wi-Fi or mobile network and user can login by waving phone at the screen.

Clef was founded in 2013 by Mark Hudnall, B Byrne and Jesse Pollak. It raised $1.6 in seed funding in 20 November.