Companies Using Facebook's 'Like' Button Must Get Users' Consent, EU Court Says

Companies that embed Facebook’s “Like” button on their websites must seek users’ consent to transfer their personal data to the U.S. social network, in line with the bloc’s data privacy laws, Europe’s top court said. Website plugins such as Facebook’s “Like” button are a common feature of online retail as companies seek to promote their products on popular social networks, but critics fear the data transfer may breach privacy laws.