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"Would you like to send a confidential note to a friend that self-destructs after it has been read so that no one else (including your friend) can ever see that secret note again? Maybe it has a password that shouldn't be stored anywhere. Or you are worried that the private note can get leaked online. "

Android applications downloaded by as many as 185 million users can expose end users' online banking and social networking credentials, e-mail and instant-messaging contents because the programs use inadequate encryption protections, computer scientists have found. The researchers identified 41 applications in Google's Play Market that leaked sensitive data as it traveled between handsets running the Ice Cream Sandwich version of Android and webservers for banks and other online services. By connecting the devices to a local area network that used a variety of well-known exploits, some of them available online, the scientists were able to defeat the secure sockets layer and transport layer security protocols implemented by the apps. Their research paper didn't identify the programs, except to say they have been downloaded from 39.5 million and 185 million times, based on Google statistics.

Grade-school students in a northeastern Brazilian city are using uniforms embedded with computer chips that alert parents if they are cutting classes, the city's education secretary, Coriolano Moraes, said Thursday. Twenty-thousand students in 25 of Vitória da Conquista's 213 public schools started using T-shirts with chips this week, Mr. Moraes said. By 2013, all of the city's 43,000 public school students will be using them, he added. The chips send a text message to the cellphones of parents when their children enter the school or alert the parents if their children have not arrived 20 minutes after classes have begun. The city government invested $670,000 in the project, Mr. Moraes said.

As a child, I always looked up at the stars and wondered how I could make it into space. Hopefully, I will live to see that day, but for now, a homemade satellite will have to do. The Nanosatisfi team has made it their mission "to provide affordable space exploration for everyone!," and with ArduSat, they move one step closer to reality. ArduSat is a Arduino-controlled miniature 10cm cubic satellite, weighing 1 kg, which is roughly equivalent to half a store bought loaf of bread. Its size might not be impressive, but it packs over 25 sensors including: Myspectral's open source spectrometer, inertial measurement unit, magnetometer, along the standard set, and many others. This impressive little machine boasts a camera to take photographs, it could send messages back to earth, or it can run your space experiments. With the ability to upload code directly to the ArduSat while in space, the possibilities are virtually limitless.

US experts have developed what they say are the most biologically-accurate robotic legs yet. Writing in the Journal of Neural Engineering, they said the work could help understanding of how babies learn to walk - and spinal-injury treatment. They created a version of the message system that generates the rhythmic muscle signals that control walking. A UK expert said the work was exciting because the robot mimics control and not just movement.

So, after my post on ground-truth documents, one of my commenters argued eloquently that I ought to clean it up and submit it to a journal read by people who manage programming projects. He suggested Software Practice and Experience. This seemed like a pretty good idea, until I read SP&E's submission procedures and was reminded that (like most journals) they want me to assign the copyright of my submission to the publisher. My instant reaction was this: Fuck. That. Noise. I'm certainly willing to cede publication rights when I want to be published, but copyright assignment ain't going to happen. Ever. Nobody gets to own my work but me. (Yes, I insist on this with my book publishers too.) I have a message to all you technical journal publishers out there…

Pidgin is our favorite instant messaging application for Windows, not only for all its great built-in feature, but for all the features you can add to it via plugins. It comes with a few built-in, but there are a ton of others out there if you know where to find them. Here are our favorites.