PCWorld: Google Apps Adds Two-Factor Security
Google will send out the authentication codes by text or voice mail, or companies can generate their own with a free app.
“Google added a two-factor authentication option to Google Apps on Monday, allowing enterprises to protect user accounts with a one-time code delivered through a mobile phone, in addition to the usual password.
The option will provide additional protection against phishing and malware attacks, as the one-time codes are valid for a limited period, said Eran Feigenbaum, director of security for Google Apps.”