Equifax named an IBM executive as chief technology officer. Bryson Koehler, previously top technology executive at IBM Watson and Cloud Platform, will be responsible for leading Equifax's global information technology strategy and development. Koehler replaces Mark Rohrwasser, interim chief information officer, who will return to his former position as CIO for the Equifax international business unit. Rohrwasser became interim CIO in September, shortly after the company announced a massive data breach. Prior to working at IBM, Koehler was chief technology and information officer at The Weather Channel Cos. Several executives retired or resigned in the wake of the data breach--including Rick Smith, the company's chief executive.