• Facebook has been rocked by a scandal in which a data firm affiliated with President Donald Trump was able to obtain Facebook data for 50 million users.
  • Now Facebook CEO Mark Zuckerberg has apologized again in a full-page ad in several newspapers, including The New York Times.
  • “I promise to do better for you,” Zuckerberg wrote.

Facebook CEO Mark Zuckerberg took out full page ads in several British and American newspapers to apologize for the Cambridge Analytica scandal that has roiled the company over the past two weeks.

“We have a responsibility to protect your information. If we can’t, we don’t deserve it,” says the ad, which ran in papers including The New York Times, Washington Post, and Wall Street Journal.

One ad also ran in The Observer, the British publication that broke the story.

The scandal centers around British data company Cambridge Analytica, which has ties to Donald Trump's 2016 presidential campaign. It illicitly obtained information from as many as 50 million Facebook profiles by abusing Facebook's data-sharing features.

Zuckerberg and Facebook first apologized earlier this week and announced plans for new tools to help people protect their data.

Here's what the full ad says:

"We have a responsibility to protect your information. If we can't, we don't deserve it.

You may have heard about a quiz app built by a university researcher that leaked Facebook data of millions of people in 2014. This was a breach of trust, and I'm sorry we didn't do more at the time. We're now taking steps to make sure this doesn't happen again.

We've already stopped apps like this from getting so much information. Now we're limiting the data apps get when you sign in using Facebook.

We're also investigating every single app that had access to large amounts of data before we fixed this. We expect there are others. And when we find them, we will ban them and tell everyone affected.

Finally, we'll remind you of which apps you've given access to your information - so you can shut off the ones you don't want anymore.

Thank you for believing in this community. I promise to do better for you.

Mark Zuckerberg"