Google has introduced a two-step sign-in code for access to Google Apps accounts, designed to provide business users with added security when using the cloud without the need to invest in additional software.
The verification will require users to log in using two forms of identification: their password and their mobile phone.
"After entering your password, a verification code is sent to your mobile phone via SMS or generated on an application you can install on your Android, BlackBerry or iPhone (coming soon) device," said Eran Feigenbaum, director of security for Google Apps.
"This makes it much more likely that you're the only one accessing your data. Even if someone has stolen your password, your account is still protected."
The mobile authentication app will be open sourced to organisations so that they can customise it as they see fit, he added.
Google's two-step verification has been built on an open standard that will allow integration with other vendors' authentication technologies in the future, Feigenbaum said.
The search firm added the ability to view password strength and set minimum password length requirements for Google Apps accounts in 2009.
Google also provided HTTPS encryption to users later that year, and this summer added more mobile device management features to the Google Apps suite.
Administrators for Google Apps Premier, Education and Government Editions can activate two-step verification from the Admin Control Panel. Standard Edition customers will be able to access it in the months ahead.
Google also plans to roll out the security upgrade to individual Google users in the coming months.
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