Forty percent of enterprise networks show evidence of DNS tunneling

DNS tunneling is a significant security threat that can enable cybercriminals to insert malware or pass stolen information into DNS queries, creating a covert communication channel that bypasses most firewalls. A new report released by network control company Infoblox reveals that 40 percent of the enterprise files it tested in the second quarter of this year show evidence of DNS tunneling. "In the physical world, burglars will go to the back door when you've reinforced and locked the front door. When you then secure the back door, they'll climb in through a window," says Rod Rasmussen, vice president of cybersecurity… [Continue Reading]