1. DSAC, FBI .
2. N. Eubanks, The true cost of cybercrime for businesses, Forbes Magazine, 7/13/17.
3. Security Magazine, Cyber Crime Costs $11.7m per business annually. 9/26/17.
4. P. Schroeder, J. Finkle, SEC calls for clear cyber risk disclosures from companies, Reuters Technology, United States. 2/21/18.
5. L. Kelly, How many people shop on-line, CPC Strategy Blog e-commerce section 5/25/17.