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Xbox Live Players Targeted In Denial-of-Service Attacks 77

The BBC reports on a growing trend where some Xbox Live players are launching denial-of-service attacks against those who beat them or otherwise irritate them in games. Quoting: "'The smart thing about these Xbox tools is that they do not attack the Xbox Live network itself,' [Chris Boyd, director of malware research at Facetime Communications said.] He said the tools work by exploiting the way that the Xbox Live network is set up. Game consoles connecting to the Xbox network send data via the net, and for that it needs an IP address. Even better, said Mr Boyd, games played via Xbox Live are not hosted on private servers. The tools mean anyone with a few dollars can boot rivals off Xbox Live. 'Instead,' he said, 'a lot of games on Xbox Live are hosted by players.' ... For $20 (£13) some Xbox Live hackers will remotely access a customer's PC and set up the whole system so it can be run any time they need it. Some offer low rates to add compromised machines to a botnet and increase the amount of data flooding a particular IP address."

"Microsaccades" Help To Refresh Your Field of View 96

Ponca City, We love you writes with news of research from the Salk Institute into small, unconscious eye movements called "microsaccades," the purpose of which has been in question for many years. A recent study showed that those movements were essentially responsible for maintaining a coherent image for interpretation by the brain. They are also the cause of a famous optical illusion in which a still image appears to move. '"Because images on the retina fade from view if they are perfectly stabilized, the active generation of fixational eye movements by the central nervous system allows these movements to constantly shift the scene ever so slightly, thus refreshing the images on our retina and preventing us from going 'blind,'" explains Hafed. "When images begin to fade, the uncertainty about where to look increases the fluctuations in superior colliculus activity, triggering a microsaccade," adds Krauzlis.'"

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