LastNewsDay: Designed

Saturday, January 18, 2014

Security firm IntelCrawler says it has identified Target malware author

Phil Coale/AP - FILE - In this Jan. 18, 2008 file photo, a customer signs his credit card receipt at a Target store in Tallahassee, Fla.

By Hayley Tsukayama, Saturday, January 18, 12:41 AM E-mail the writer

Security firm IntelCrawler said Friday that it has identified a Russian teenager as the author of the malware probably used in the cyberattacks against Target and Neiman Marcus, and that it expects more retailers to acknowledge that their systems were breached.
In a report posted online, the Sherman Oaks, Calif., company said the author of the malware used in the attacks has sold more than 60 versions of the software to cybercriminals in Eastern Europe and other countries.

Properly-Designed Rough Surfaces can Reduce Drag: Study

Majorly, objects moving through water are smooth. But as a research, a study carried out by a group of researchers from UCLA, bumpiness can be better in certain cases.
Prof. John Kim from the mechanical and aerospace engineering department at UCLA said that some rough surfaces are able to reduce skin-friction drag. Before, conducting the study, they used to believe contrary to the same.
In their study, fluid movement was monitored between two surfaces coated with small ridge. The study researchers found very astonishing results that the rough surface was able to reduce drag in bumpy conditions generated by the frictions of moving water.
Studies have been taken on the topic earlier as well, but not much success has been achieved. In the current study, the study researchers have modeled a superhydrophobic surface. The surface was coated with ridges and was positioned in the direction of water flow.
Laminar and turbulent flows, bother were modeled. To their surprise, the drag reduction was found to be greater in turbulent conditions. The revelation of the same has been published in the American Institute of Physics.
Prof. Kim said about properly-designed rough surfaces, "It could lead to significant energy savings and reduction of greenhouse gas emissions".