A court in Belgium has insisted that the American technology giant deletes all of the data it had gathered on people who did not use the social network, with the court determining that it was gathered illegally.
According to the court, Facebook had broken the law by placing tracking code, which is more commonly referred to as cookies, on third-party sites.
Facebook was instructed that it must "stop following and recording internet use by people surfing in Belgium, until it complies with Belgian privacy laws".
The court added: "Facebook must also destroy all personal data obtained illegally."
Facebook, for its part, has responded to the ruling by saying that it's disappointed with the decision.
Richard Allan, the company's vice-president of public policy in Europe, explained: "The cookies and pixels we use are industry standard technologies, and enable hundreds of thousands of businesses to grow their businesses and reach customers across the EU."
Meanwhile, the European Commission recently called on social network platforms to do more to tackle fraud and scams.
The likes of Google, Facebook and Twitter were first instructed to make some notable amendments in order to combat fraud back in 2016, and Vera Jourova - who is the European Commissioner for Justice - recently admitted that the changes are taking too long to enforce.
She said: "As social media networks are used as advertising and commercial platforms, they must fully respect consumer rules.
"I am pleased that the enforcement of EU rules to protect consumers by national authorities is bearing fruit, as some companies are now making their platforms safer for consumers. However, it is unacceptable that this is still not complete and it is taking so much time."