By Brendan Sasso - 02/09/12 05:41 PM EST
The Electronic Privacy Information Center (EPIC) filed a lawsuit on Wednesday to force the Federal Trade Commission (FTC) to block Google's planned changes to its privacy settings.
EPIC argued that Google's privacy changes violate a previous settlement with the FTC over the now-defunct Google Buzz social network.
A Google spokeswoman said, "EPIC is wrong on the facts and the law."
Google has come under fire from privacy advocates since it announced last month it will consolidate the privacy policies of its various services into a single document.
The change allows Google to share user information between its services. Words in private emails could influence search results on YouTube, for example.
The changes go into effect on March 1.
The settlement bars Google from misrepresenting its privacy policies and requires the company to obtain consent from its users before changing how it shares their information with third parties, such as advertisers.
In its lawsuit, EPIC argued that Google's recent privacy changes violate the settlement by "failing to obtain affirmative consent from users prior to sharing their information with third parties" and by misrepresenting the extent to which the company protects users' private information.