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Sunday, October 2, 2005

Acoustical Spying Recovers Passwords With 90-percent Accuracy

Computer scientists at UC Berkeley have been experimenting with recordings of keystrokes. Using 10-minute sound recordings of users typing at a keyboards, researchers were able to feed the data into a computer and recover up to 96 percent of the typed characters. By running the audio repeatedly through a feedback loop that trains the computer, they were able to recover passwords, passphrases, and complete paragraphs. [via FutureEdition from Arlington Institute]
Once the system is trained, recovering the text became more straightforward, even if the text was a password and not an English word. After just 20 attempts, the researchers were able to retrieve 90 percent of five-character passwords, 77 percent of eight-character passwords and 69 percent of 10-character passwords.

[...]

What was particularly striking about this study, the researchers said, was the ease with which the text could be recovered using off-the-shelf equipment. "We didn't need high-quality audio to accomplish this," said Feng Zhou, a UC Berkeley Ph.D. student in computer science and co-author of the study. "We just used a $10 microphone that can be easily purchased in almost any computer supply store."
Posted by: Send an e-mail to Terry Frazier Terry Frazier at 9:51 PM  | Permanent Link  | Trackback URL | 
Categories: Privacy, Technology

Jerry Michalski's Brain is Back Online

personalbrainlogo.jpgPersonalBrain was one of the most advanced personal knowledge tools I ever used. Jerry Michalski has the largest brain in existence and has put it back online after a long hiatus. Jerry's brain is a great example of how these tools can be used, as are David Buchan's Brainwave patterns.  [More...]
Posted by: Send an e-mail to Terry Frazier Terry Frazier at 5:03 PM  | Permanent Link  | Trackback URL | 
Categories: Knowledge Mgmt, Productivity, Technology


Friday, September 30, 2005

What is Web 2.0?

web20.jpgThe web is a big idea and, for me, Web 2.0 (or 3.0 or 4.0) means we’ve made a significant step forward in usability and usefulness. Not necessarily new or different (because the web, as conceived, was a really good big idea,) but we’re doing much of it better and it’s getting easier to do what we want.  [More...]
Posted by: Send an e-mail to Terry Frazier Terry Frazier at 10:40 AM  | Permanent Link  | Trackback URL | 
Categories: Technology


Wednesday, September 28, 2005

Web 2.0 Writing Tools

Today I play around with two local wiki variants - Instiki and TiddlyWiki - trying to find a better route to write-once/publish-many nirvana.  [More...]
Posted by: Send an e-mail to Terry Frazier Terry Frazier at 12:00 AM  | Permanent Link  | Trackback URL | 
Categories: Productivity, Technology
Terry W. Frazier
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