Top civil liberties groups and privacy advocates are pressing technology companies to do more to protect their users after Cambridge Analytica improperly collected data from tens of millions of Facebook accounts without users' consent.

The American Civil Liberties Union, Fight for the Future and Color of Change are calling on technology companies to sign a pledge committing them to “to protecting their users’ data from exploitation and securing their users’ human rights, ensuring their products and services do not put human rights at risk.”

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The pledge follows revelations that Cambridge Analytica, a British research used by the Trump campaign, was able to improperly harvest data 50 million Facebook users.

News of the breach has stoked new concerns over data collection and security practices from lawmakers and the public over the massive amounts of data that internet companies like Google and Facebook collect from their users.

The civil liberties and privacy groups want companies to give consumers more control over their data, limit data collection, better protect user data and push back against government requests for data to "ensure the internet is used to expand democracy, not undermine it."

“Cambridge Analytica is just the tip of the iceberg, and this problem doesn’t begin and end with Facebook. If the largest tech companies take the steps outlined in the security pledge, it will change the course of human history for the better, and protect billions of people’s basic rights,” said Evan Greer, deputy director of Fight for the Future.