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Firewalls Can't Keep up With DDoS Attacks
By John E Dunn, Techworld.com Nov 13, 2011 5:43 pm
Companies still rely heavily on firewalls to defend themselves against denial-of-service attacks despite the fact that this class of device is often not up to the task, a new survey by F5 Networks has found.
The survey of 1000 medium and large organizations in ten countries found that up to 45 percent of respondents experience such attacks on a regular basis, a mixture of application and network-layer incursions.
About half rated denial of service attacks as highly effective with 79 percent saying they still relied on firewalls to deflect them despite 42 percent finding that such devices were ineffective against conventional attacks at the network layer.
The research also found that nearly half had detected attempts to access encrypted data on networks, with 44 percent noticing attacks against DNS servers, one of the most difficult-to-defend assets.
"Whilst many organizations can view insider threats as the most difficult to defend against, the research clearly demonstrates that external threats remain a potent force, and companies need to be aware of the most effective ways to safeguard themselves," said F5's technical director, Gary Newel.
Attacks on DNS servers were a clear worry, rated as being in the top three hard to repel attacks by a third of those asked.
Detailed information at:
http://www.pcworld.c....html#tk.hp_new
By John E Dunn, Techworld.com Nov 13, 2011 5:43 pm
Companies still rely heavily on firewalls to defend themselves against denial-of-service attacks despite the fact that this class of device is often not up to the task, a new survey by F5 Networks has found.
The survey of 1000 medium and large organizations in ten countries found that up to 45 percent of respondents experience such attacks on a regular basis, a mixture of application and network-layer incursions.
About half rated denial of service attacks as highly effective with 79 percent saying they still relied on firewalls to deflect them despite 42 percent finding that such devices were ineffective against conventional attacks at the network layer.
The research also found that nearly half had detected attempts to access encrypted data on networks, with 44 percent noticing attacks against DNS servers, one of the most difficult-to-defend assets.
"Whilst many organizations can view insider threats as the most difficult to defend against, the research clearly demonstrates that external threats remain a potent force, and companies need to be aware of the most effective ways to safeguard themselves," said F5's technical director, Gary Newel.
Attacks on DNS servers were a clear worry, rated as being in the top three hard to repel attacks by a third of those asked.
Detailed information at:
http://www.pcworld.c....html#tk.hp_new
