One thought on “Two-Factor Authentication”

  1. Interesting to see that 5 out of those 9 apps listed on the lifehacker page use Google Authenticator system for providing the Two-factor authentication.

    A note for the readers of this blog: Even if a webapp doesn’t have native 2-factor authentication support, you can use Verisign’s PIP or Google Federated Logon to login into these webapps if they support OpenID. Both Verisign’s PIP and Google Federated Logon provide strong 2-Factor authentication. For example, StackExchange, a popular question and answer site, doesn’t have native support for 2-Factor authentication, but as an end-user of the site you can use a 2-Factor enabled OpenID provider like Verisign’s PIP or Google Federated Logon to login into these sites

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