Vienna University of Technology researchers have developed the “deanonymization” attack as a way to reveal the identity of Internet users based on their interactions in social networks. The attack uses social networking groups as well as traditional browser history-stealing tactics to single out specific users. The researchers focused on Germany’s Xing business social network and Facebook and matched stolen browsing histories with social network group members to identify users. “It is the combination of history stealing and group information that is novel,” says Vienna University post-doctoral researcher Gilbert Wondracek. Criminals could use the deanonymization method for targeted attacks, which only requires that the victim visit a malicious Web site that contains the attack code. There is no fix for the attack, but users can turn off their browsing history or use a private-browsing mode to minimize the risk.
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University of Illinois at Urbana-Champaign professor Carole Palmer says data curation is an important part of supporting and advancing research. “This is especially important in data-intensive science, where the power of discovery lies in applying computational approaches to large, aggregated data sets,” Palmer says. She says researchers need to plan around data-management requirements from the beginning of their projects, and to think in terms of a data set’s lifecycle. The biggest hurdles to overcome in collecting, curating, and managing data over a long period of time involve cost and labor. Even with the Internet and search engines, data stored online does not last nearly as long as data preserved in print. “We’re just beginning to do the research needed to guide how we build large-scale, multidisciplinary data repositories and collect and manage data in ways that add value and promote sharing and integration across laboratories, institutions, and disciplines,” Palmer says.
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Websense researchers have developed FireShark, software that automatically monitors malicious activity on Web sites. Websense researcher Stephan Chenette says the experimental system scans the Web, identifies the source of embedded content in Web pages, and determines whether any code on a site is acting maliciously. FireShark then creates a map of interconnected Web sites and looks for potentially malicious content. FireShark, which maps nearly one million Web sites and servers per day, decodes the HTML, Javascript, and other code embedded in each Web site, looking for the ultimate source of content. “When you graph multiple sites, you can see their communities of content,” Chenette says. Websense researchers plan to release a plug-in for Firefox that will reveal the content hubs that a site is linked to.
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University of Jaen (UJA) telecommunications engineers have developed a method to automatically detect and identify musical notes in an audio file and generate sheet music. The system can identify notes from different instruments, musicians, types of music, or recording studio conditions. “We propose an automatic system to detect and transcribe musical notes for one-instrument musical signals which, unlike other methods, is capable of adapting to the music scene,” says UJA’s Julio Jose Carabias. “Automatic music transcription has many practical applications for musicological analysis and is of enormous assistance, for example, in recovering musical content, separating audio sources, and codifying or converting audio files.” The researchers’ method converts WAV music files into MIDI files, which makes it possible to visualize the sheet music and listen to the result. “Another advantage of this method is that it does not require prior training with a musical database,” Carabias says.
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