L' INTELLIGENCE CYBER par Jean-Paul Pinte

Almost eight years ago, Bruce Schneier wrote a great article about the problems of ROI calculation for cybersecurity spending within organizations. Since then, both annual spending on cybersecurity and the cost of global cybercrime have significantly increased.

http://www.csoonline.com/article/3010007/advanced-persistent-threats/how-to-calculate-roi-and-justify-your-cybersecurity-budget.html