IT services giant Cognizant suffers Maze Ransomware cyber attack. Information technologies services giant Cognizant suffered a cyber attack Friday night allegedly by the operators of the Maze Ransomware, BleepingComputer has learned. Cognizant is one of the largest IT managed services company in the world with close to 300,000 employees and over $15 billion in revenue. As part of its operations, Cognizant remotely manages its clients through end-point clients, or agents, that are installed on customer’s workstations to push out patches, software updates, and perform remote support services. Third-party company: Cognizant.