The systems of Deloitte, a consulting and accounting firm that ranks among the worlds big four, were compromised and hardly anyone knew it. The attackers were able to access information from major corporate and government clients in the US. The system reportedly stored emails from 244,000 staff members on Microsoft’s Azure cloud. The firm insists that only a small fraction of its clients have been impacted by the breach. In 2012, research and advisory firm Gartner named Deloite the best cybersecurity consultant in the world.”]
Source: https://gizmodo.com/one-of-the-worlds-biggest-accounting-firms-hacked-after-1818722565