“When you have average — not peak — rates in excess of 45 Gbps and 30 million packets per second, even the largest enterprises, carriers and, quite frankly, most mitigation providers, are going to face significant challenges.” In the first three months of 2013, 77% of DDoS attacks targeted bandwidth capacity and routing infrastructure, while 23% were application-level attacks that didn’t overwhelm targeted networks through packet quantity, but rather by disrupting critical applications or processes running on a server. The report also found that between the fourth quarter of 2012 and the first quarter of 2013, the total number of attacks increased marginally — by only 2% — while attack duration increased by 7%, from 32.2 hours to 34.5 hours. While 55% of all attacks came from China at the end of last year, by March 2013 that had dropped to 41%, followed by the United States (22%), Germany (11%), Iran (6%) and India (5%).