By Brendan Sasso - 02/27/12 05:12 PM EST
The privacy changes will allow Google to share user information across its various services. For example, users could begin seeing ads in Gmail based on the videos they have watched on YouTube.
Privacy advocates and some lawmakers have questioned whether Google will offer users a meaningful way to opt out of the privacy changes other than quitting Google services entirely.
The Google spokesman explained that signed-in users can still turn use privacy controls such as turning off their search and YouTube histories, controlling tailored ads or going into a private mode on Chrome.
Google and the FTC agreed to a privacy settlement last year after Google began automatically opting users into its now-defunct social network, Google Buzz. The settlement imposes a set of privacy requirements on Google and bars it from misrepresenting its privacy policies in the future.
The Electronic Privacy Information Center (EPIC) argues that Google's privacy changes violate its settlement with the FTC. Earlier this month, the privacy group sued the FTC to try to force the agency to block Google's changes.
The FTC has not taken a position on Google's privacy changes, but the agency argues that it has the discretion over whether it will enforce its own settlements. Last week, a federal judge agreed and dismissed EPIC's suit.
The group has appealed the ruling.
--Updated at 1:18 p.m.