A former software developer who worked for Equifax before the Atlanta-based credit bureau announced a massive data breach last year has been charged with insider trading, federal prosecutors in Atlanta announced today.

Sudhakar Reddy Bonthu is scheduled to be arraigned Thursday, the U.S. Attorney’s Office for the Northern District of Georgia announced. Equifax fired Bonthu, 44, in March after he allegedly refused to cooperate with an internal investigation into whether he had violated the company’s insider trading policy, the U.S. Securities and Exchange Commission (SEC) said in a statement released Thursday.