The social network allows the sharing of data with other services including Instagram
IDG News reports the EU has formed a task force to deal with the new policy, which is thought to violate EU privacy laws.
A spokeswoman for Bart Tommelein, Belgium's state secretary for privacy, said the new laws "flagrantly go against general privacy laws in Europe."
"These are several things that really go too far, we think, and the task force will investigate them," she continued.
In a statement to IT Pro, Facebook said it has recently updated its terms and conditions to make them more "clear and concise", and is confident they comply with the applicable regulations.
"As a company with international headquarters in Dublin, we routinely review product and policy updates including this one with our regulator, the Irish Data Protection Commissioner, who oversees our compliance with the EU Data Protection Directive as implemented under Irish law," the statement added.
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