New York-based blockchain company tZERO, which is a majority-owned subsidiary of Overstock.com, announced Wednesday that a former in-house attorney at Mastercard has been named the company’s chief legal officer.

Alan Konevsky is responsible for overseeing the company’s legal, regulatory, public policy and compliance functions. He is the leader of the company’s in-house team and reports to tZERO’s CEO, Saum Noursalehi. According to Konevsky’s LinkedIn profile, he began working at tZERO in November. It was not immediately clear if he is the company’s first chief legal officer.