Unknown attackers are probing the internet’s underlying infrastructure through DDoS attacks, according to Bruce Schneier, a cyber security expert and CTO at IBM’s Resilient.
The cyber security evangelist levied his suspicions at hackers from large nation states, pulling no punches on naming the nations he believes such DDoS attacks may be coming from.
“One week, the attack would start at a particular level of attack and slowly ramp up before stopping. The next week, it would start at that higher point and continue. And so on, along those lines, as if the attacker were looking for the exact point of failure,” he noted.
He added that the attacks being levelled at theses infrastructure companies have been designed to attack across as many vectors as possible to see how the targeted firms defences counter the attacks.
“These companies are seeing more attacks using three or four different vectors. This means that the companies have to use everything they’ve got to defend themselves. They can’t hold anything back. They’re forced to demonstrate their defence capabilities for the attacker,” said Schneier, noting these findings track with the DDoS trends identified by Verisign, the registrar for many popular top-level internet domains.
“There’s more. One company told me about a variety of probing attacks in addition to the DDoS attacks: testing the ability to manipulate Internet addresses and routes, seeing how long it takes the defenders to respond, and so on,” he added. “Someone is extensively testing the core defensive capabilities of the companies that provide critical internet services.”
“It feels like a nation’s military cybercommand trying to calibrate its weaponry in the case of cyberwar. It reminds me of the US’s Cold War program of flying high-altitude planes over the Soviet Union to force their air-defence systems to turn on, to map their capabilities,” he speculated, adding that there is little that can be done about such attacks given their origin is unknown.
However, he suggests the NSA, which “has more surveillance in the Internet backbone than everyone else combined”, could shed some light on the source of the DDoS attacks.
One could see this as the early warnings of a potential cyber war. As many superpowers have nuclear weapons, which act as deterrents under the idea that mutually assured destruction would render their use almost suicidal, gaining superiority in the cyber warfare could may be the next arms race.
However, it is worth speculating that a single attack on a major provider of internet infrastructure would have massive ramifications on the way the internet operates across the globe.
So taking down a major US ISP could have the knock-on effect of severing e-commerce and international banking between continents, thereby causing massive crashes in global stock markets and trade. In short, pulling the virtual carpet out from under the internet would affect more than one nation, due the the globalisation of business, and could be the cyber warfare equivalent of cutting one’s nose off to spite one’s face.
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