IT managers are ‘highly or extremely' concerned about being the victim of a distributed denial-of-service (DDoS) attack.

According to research by Corero Network Security of 100 mid to large-sized UK enterprises, 41 per cent were ‘highly or extremely' concerned about being the victim of an attack. To protect against the problem, 31 per cent said they already had purchased specialised anti-DDoS technology, while 36 per cent said that they were relying solely on their firewalls to protect themselves and did not intend to augment their protection.

The survey also found that the number of UK organisations experiencing attacks year-on-year had climbed to 25 per cent in 2013 from 18 per cent in 2012. Bob Tarzey analyst and director at UK-based analyst firm Quocirca, said: “Organisations believe they have the basis for protection against targeted attacks, such as DDoS, when in fact they are referring to traditional security technologies. To be fair, many do understand the changing nature of the threats faced, but over-estimate their capability to mitigate them.”

Ashley Stephenson, CEO of Corero Network Security, said: “It's interesting to note that in spite of the significant increase in perceived protection against DDoS attacks over the last year, IT managers are more concerned than ever about the threat of an attack.

“What's clearly apparent from this survey is that IT managers still do not properly understand the variety and sophistication of DDoS attacks and the risks that their organisations are taking in relying on firewalls to protect them.”