Fresh off the heels of controversy surrounding the sharing of user data with Cambridge Analytica, Facebook Inc. announced on May 8 it will begin exploring different ways to incorporate blockchain into its infrastructure. Yet questions remain over how the social media company will implement the technology and what sort of legal challenges doing so could portend.

News of the decision comes as Facebook announced the largest leadership change in the company’s 15 year history. David Marcus, a Facebook vice president who formerly headed the company’s Messenger division, wrote in a Facebook post that he’ll take lead over a “small group” tasked with determining how to “best leverage blockchain across Facebook, starting from scratch.”