"We heard immediately from Google Apps for Business users that this was a killer feature for working with local teams across the world, " the company says.

CNN: Bonjour Google! Gmail adds auto-translation

On Thursday, the company announced on its blog that so-called two-factor authentication via cell phone is now available for all users logging into Google apps like Gmail and Google Docs, not just the business accounts that gained the feature last September.

FORBES: Google Adds Cellphone-Based Security For Everyone