"Internet security firm Incapsula surveyed 270 firms across the U.S. and Canada about their experiences with DDoS attacks. On average, they found, 49% of DDoS attacks last between 6 and 24 hours. “This means that, with an estimated cost of $40,000 per hour, the average DDoS cost can be assessed at about $500,000—with some running significantly higher,” the company reported. “Costs are not limited to the IT group; they also have a large impact on units such as security and risk management, customer service, and sales.”

Full article and infographic...

DDoS Attacks Cost Businesses $40,000 an Hour

Original Incapsula survey:
http://www.incapsula.com/blog/ddos-i...os-attack.html