BitSight Technologies is restocking its war chest to try and win the emerging market for cybersecurity ratings. Today the Cambridge, MA-based tech company announced it raised $60 million in a Series D funding round led by Warburg Pincus, the global private equity firm that has backed the likes of CrowdStrike in cybersecurity, DBRS in credit ratings, and Reorg Research in information services—three sectors that relate to BitSight’s business, CEO Tom Turner points out.