Microsoft paper disputes high cost of cyber crime cited in many industry and vendor surveys. Computer security expert: APTs (advanced persistent threats) are or have been in every Fortune 500 company. APTs have penetrated far more than those companies, including military networks, government websites, subcontractor computers, and other firms with significant intellectual property to steal. The teams directly involved range in size from a dozen to a few hundred. Expensive consultants are brought in, along with vendors, human resources, senior management, board of directors.”]
Source: https://www.csoonline.com/article/2616929/cyber-crime-not-a-big-deal–get-real.html