Archive for the 'Internet' Category Page 3 of 7

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Nov 12

Information visualization through graph with TouchGraph

in Collection and research, Internet, search engine and visualization. 1 Comment Printable version Printable version

Graph visualization is a powerfull means to find relation between data and cluster them (It is one of my favorite method). Touchgraph is a online visualisation tools that allows to generate a graph from a query you made. It is a java plugins that work right into your browser.
Currently Touchgraph work with:

  • Amazon
  • Google
  • Facebook

I found the rendering very impressive and the integration with facebook photo totally cool (see the screenshots). However you can’t use it facebook-sample-lg-3.jpg on your own data. It could be a killing application to add to a publication list or even blog post. Imagine the ability to navigate visualy between posts. Well it will come one day, I just don’t know when :) If you want to try your own query, just go to their web site: TouchGraph | Products: Our Technology
Ps theses guys rocks they use game theory as amazon example :)

Nov 03

OSX Trojan

in In Internet, Internet, Security and System. 1 Comment Printable version Printable version

The fact is sufficiently rare to be mentionned. A “trojan” for OSX (Leopard included) is in the wild. It work by asking the user to download a codec to see a video (I let you guess what type of video it can be :) ). It look like something like that on the web page:

“Quicktime Player is unable to play movie file.
Please click here to download new version of codec.”

When the user click a .dmg is downloaded and the user is asked to give the administrator password (Nobody use the admin account as is every day account right ? :) ). Instead of installing the promised codec, it changes the default DNS. Hence when you ask for a web site, the new DNS redirect you to a fake site… Of course the user should be aware that something is wrong because the admin password is asked but I have a little doubt here… Of course the dns will not redirect every site to fake one.

The advisory can be found here: Intego Security Memo

A good idea would be to deny the fake DNS in firewall however I haven’t found it. If anyone knows it, it could be useful. It also could be nice to check which site are redirected.

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