"In this specific case, the Commission's preliminary view is that Facebook gave us incorrect or misleading information during the investigation into its acquisition of WhatsApp. Facebook now has the opportunity to respond."
Earlier this year, when WhatsApp offered the option of linking its users' phone numbers with Facebook user identities, the messaging service said that this would help improve friend suggestions (and displaying more relevant ads) on linked Facebook accounts.
The Commission says this technical possibility of automatically matching Facebook users' IDs with WhatsApp users' IDs already existed in 2014, and thus the company had misled the EU during its merger investigations.
This is the latest in an aggressive series of legal decisions against tech companies. The Commission is currently pursuing tax bills from Apple in Ireland, as well as pointing the finger at companies like Twitter and Microsoft that are not reacting quickly enough to online hate speech. Recent privacy group complaints forced Facebook to halt data sharing between WhatsApp and the network in Europe just last month.
Facebook has until January 31st 2017 to respond — making it a cheery festive season for Zuckerberg et al. If the accusations are confirmed, the European Commission could fine up to one percent of Facebook's turnover. A spokesperson said it will "respect the Commission's process and are confident that a full review of the facts will confirm Facebook has acted in good faith."