ZeroFox, an enterprise software-as-a-service provider of external cybersecurity, to acquire IDX, a digital privacy protection and data breach response services company. Financial terms were not disclosed. “We believe that external cybersecurity must be a top three priority and part of the critical security tech stack for Chief Information Security Officers because perimeter firewalls and internal endpoint agents alone are not enough to protect company assets and customers,” James C. Foster, ZeroFox Chairman and CEO.