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Posts with tag denial of service

Online Attacks Getting Bigger, Stronger, Says Report


Cyber criminals have proven again and again that they're a step or two ahead of the law enforcement and computer techs that are trying to stop them, but a new report says criminals aren't restraining themselves to viruses and shady emails. The survey shows that distributed denial of service, or DDOS, attacks are increasing in number and potency and could threaten the largest Web sites and networks. DDOS attacks use botnets, a string of infected computers, to overload and crash servers, and they have been used in political and military conflicts, as well as garden-variety Internet schemes.

Arbor Networks, a network security company, conducted a survey of 70 of the largest service providers in the world, and Arbor says that the size of attacks has increased over the last seven years from less than half a megabit to 40 gigabits. According to Arbor, most businesses have one gigabit connections or less, so even a relatively small DDOS attack can bring them down. Companies are responding by adding capacity to their networks, but it's still plausible that a large attack will succeed.

Another eye-opener in the report is that 58-percent of the surveyed operators hadn't referred any attacks to law enforcement in the last year. The reasons? Some said the law isn't equipped to deal with it, others thought customers should be the ones reporting it, and still others just didn't see the point. And they wonder why criminals consistently have the upper hand? [Source: New York Times]

Hackers Take Out Scientology Web Site


Well, it looks like the war is on. The Church of Scientology's attempts to squash circulation of a video of Tom Cruise last week seem to have been the final straw for a group that calls itself "Anonymous." According to a recent report in Wired, the cryptically-named organization recently stated that its main goal is to destroy the leadership of the Church of Scientology.

The first public salvo was launched over the past couple of days as a group of hackers claiming affiliation with Anonymous took down the home page of the Church with repeated distributed denial of service (DDOS) attacks. DDOS attacks flood target servers with requests, so that they become overwhelmed with data and shut down. This results in a site that doesn't work, which is exactly what visitors to the Scienology Web site experienced during the attack. The attacks flooded Scientology's Web servers with as much as 220 megabits per-second, which security experts claim is a mid-sized attack.

While this attack is not the largest of its kind ever seen, it does show some level of organization, "It's not just one or two guys hanging out in the university dorms doing this," said Jose Nazario, a senior security engineer with Arbor Networks. The church has since moved its site to servers run by Prolexic Technologies, a company that specialized in protection from DDOS attacks.

From Wired (via InfoWorld)

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