More than two-thirds (64%) of banks in the US have suffered at least one Distributed Denial of Service (DDoS) attack in the past 12 months, according to independent research commissioned by Corero Network Security. IT and IT security managers at 650 banks responded to the survey, which also revealed that almost one in two banks (49%) of respondents had suffered multiple DDoS attacks in the past 12 months. Surprisingly, however, 50% of respondents cited insufficient personnel and expertise and a lack of effective security technology as the key barrier impacting their ability to deal with DDoS attacks.