Google will be subjected to eccentric privacy audits is to next 20 years over charges that it "violated its own privacy promises".
The US Federal Trade Commission (FTC) mentioned that the finding hulk poorly used data from Google Mail users final year to emanate its amicable network Buzz.
The FTC ruled that "the options for disappearing or leaving the amicable network were ineffective".
"Google Buzz fell partial of our standard standards," Google mentioned in a blog post.
"While you worked rapidly to make improvements, regulators unsurprisingly longed for more item about what went incorrect and how you could stop it from going on again.
"Today, we've reached an consent with the FTC to residence their concerns."
That consent will require Google to bear a privacy examination once every two years is to next 20 years.
"When companies make privacy pledges, they must be honour them," mentioned Jon Leibowitz, chairperson of the FTC.
"This is a difficult settlement that ensures that Google will honour its commitments to consumers and erect burly privacy protections in to all of its operations."
Buzz's launch in February 2010 came beneath complicated critique from users.
According to Google, the network was written to bring together members' personal and in isolation lives.
One extensive censure was over a underline that authorised it to publicly list other Gmail contacts a user was many often in hold with.
While this underline could be incited off, the default surroundings was to leave it on - potentially divulgence a user's meeting with an ex-spouse, employer or similar.
The FTC mentioned "deceptive tactics" were used to stock the network with personal data gained from use of Gmail, and that when users were since the change to opt-out of Buzz, they were still enrolled in a few of its features.
For those that did confirm to opt-in, the FTC says the implications of that were not done clear.
"Google moreover offering a 'Turn off Buzz' choice that did not entirely eliminate the user from the amicable network," it said.
The FTC mentioned Google disregarded its privacy process that stated: "When you pointer up for a specific service that requires registration, you inquire you to give personal information.
"If you use this data in a behaviour not similar than the role for that it was collected, then you will inquire for your consent previous to such use."
The settlement means that the firm must make larger efforts to make sure it obtains users' consent before pity data in a way that is dead against to the privacy policy.
It must moreover "establish and sustain a thorough privacy program".
It is the ultimate in a line of privacy blunders from Google.
In November 2010, a few users of Buzz sued the firm over privacy violations.
Google staid that box by surroundings up an $8.5m (5.2m) account to encouragement "organisations working on privacy preparation and process on the web".
It apologised to users for deficient contrast of the service.
Earlier this month, the firm was fined after incorrectly getting personal data from unsecured wi-fi networks whilst receiving cinema for its Street View service.
Reflecting on the ultimate settlement, Alma Whitten, Google's executive of privacy, product and engineering, said: "We'd similar to to swallow ones pride once again is to mistakes you done with Buzz.
"While today's statement thankfully put this situation at the back us, you are 100 percent focused on ensuring that our new privacy procedures effectively safeguard the interests of all our users going forward."
