Implementing Custom Two-Factor Auth (with Twilio)
Implementing Custom Two-Factor Auth (with Twilio)

Implement your own SMS-based two-factor authentication via the Twilio API.

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Twofactor Custom Twilio

Two-Factor with a Wave - Using Clef
Two-Factor with a Wave - Using Clef

The Clef service provides an interactive, easy to implement two-factor solution.

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Twofactor Clef Wave

The Plight of the Password
The Plight of the Password

Passwords must die, find out how to help that along in your own applications.

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Password Twofactor Federated Identity

Two-Factor the Yubikey Way
Two-Factor the Yubikey Way

The Yubikey USB hardware token makes two-factor authentication as easy as pushing a button.

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Twofactor Yubikey Api

Google's Two-Factor Auth - Online or Offline
Google's Two-Factor Auth - Online or Offline

The Google Authenticator smartphone application makes two-factor auth simple, even without a connection.

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Twofactor Authentication Google Authenticator

Two-Factor Auth Integration with Duo Security
Two-Factor Auth Integration with Duo Security

Using the Duo Security API you can manage multiple users and integrations, all through a REST interface

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Twofactor Authentication Duosecurity Api Webservice

Easy Two-Factor Authentication with Authy
Easy Two-Factor Authentication with Authy

Using the Authy REST API, you can quickly and easily integrate two-factor auth into your system.

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Twofactor Authentication Authy Api Webservice

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