According to one research that would be out in coming few days, one cause of this problem is that over the Internet the number of the consumer devices is increasing day by day. These devices are not properly configured and are made in such a way that they can accept queries from anywhere on the Internet. This is called as being network recursive or the open resolver systems by many of the experts of networking.

The research has been sponsored by Infoblox, which is the DNS appliance company. The Infloblox`s vice president of their architecture name Cricket Liu has said that due to more consumers demanding the service of broadband internet, the service providers are giving this kind of modems to their customers. He also took the names of two of the leading service providers which according to him are France Telecom as well as Telefonica. He further added that the percentage of such modems, which are not configured properly, have increased from 50% in 2007 to about 80% in the current year.