Category Archives: wireless

Using Computer Clock Skew to Crack Anonymity Networks

At the recent Chaos Communications Congress, Steven J. Murdoch, a researcher in the security group at the University of Cambridge, discussed how clock skew can be used to facilitate a digital attack against anonymity networks. Clock skew, the tendency for a computer’s clock to become less precise when heated, can reduce the efficacy of anonymizers, such as the Electronic Frontier Foundation’s Tor network.


What is a Fully-Secured Computer?

The only fully-secured computer is one that is turned off. It is impossible to guarantee total security, especially once a computer is connected to a network, including the Internet. The best for which an IT manager (or an individual user) may hope is that the installed antivirus, antispam, and firewall applications are stronger than the attacks the computer receives.

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Digitalis Americana – Wi-Fi Access on Vacation

Being away does not mean being gone.

When I originally wrote this article, I was visiting one of my favorite vacation spots in the United States: Hilton Head Island, South Carolina. I am shocked that a paucity of public life line networks the coffee shop down the road from our resort offers free wireless Internet service and the sundry store on the other side of the shopping doubles as an Internet café, selling access for $6.00 a day.


GoogleNet Hotspots Coming To A City Near You

Commercial internet wi-fi hotspots are popping up in coffee shops and bookstores around the country. Most universities and many public libraries offer free wi-fi service. A quick drive though any but the most downtrodden neighborhoods yields signals from at least a small percentage of the residences. With wi-fi being as popular as it is, why is it that wi-fi infrastructure isn’t as well developed as cellular telephone service? Why hasn’t someone made wi-fi even more accessible?


Nokia Announces Linux-based Portable Internet Device

Nokia announced that its is developing a portable Internet device based on the open-source Linux operating system. Designed to take advantage of the wide distribution of accessible Wi-Fi networks, the Nokia 770 Internet Tablet features a widescreen display and an on-screen keyboard, a la a PDA on steroids. The device will also be able to connect to Bluetooth-enabled mobile phones as an alternative network connection source.


U.S. Navy Develops Reasonable IT Use Policy

The U.S. Navy is developing a service-wide policy regarding the acceptable use of information technology. The policy will affect approximately 900,000 users, including Navy and Marine Corp service members, civilian employees, and contractors. The policy, which is scheduled to be effective during the first quarter of 2005, is designed to guide users and personnel managers in applying consistent rules of operation. The policy will affect all IT devices, including desktops, notebooks, handhelds, cell phones, and fax machines.


How Has the PC Changed the Face of America?

I have a favor ask of you. I am researching how the personal computer (PC) has affected the face of America. Specifically, I am interested in the PC’s effect on American culture and attitudes. For example, how has access to a PC affected behavior and expectations? To do this , I’m asking for your experiences that were brought on by the PC revolution.