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The Hacker News - Cybersecurity News and Analysis: SD card

Facebook releases 'Conceal' API for Android developers to Encrypt data on Disk

Facebook releases 'Conceal' API for Android developers to Encrypt data on Disk

February 07, 2014Mohit Kumar
Many Smartphone applications support, installation or app data storage to an external SD Card, that can be helpful in saving space on the internal memory, but also vulnerable to hackers. Typically, an app that has permission to read and write data from an SD card has the permission to read all data on that card, including information written by other apps. This means that if you install a malicious application by mistake, it can easily steal any sensitive data from your Phone's SD Card. To prevent the data from being misused by any other app, the best implementation is to encrypt the data, but that will drop the performance of the device. On its 10th birthday, as a treat for mobile developers, Facebook has unveiled the source code of its Android security tool called ' Conceal ' cryptographic API Java library, that will allow app developers to encrypt data on disk in the most resource efficient way, with an easy-to-use programming interface. Smaller th
Firmware vulnerability allows man-in-the-middle attack using SD Memory cards

Firmware vulnerability allows man-in-the-middle attack using SD Memory cards

January 02, 2014Anonymous
How is it possible to exploit SD Card, USB stick and other mobile devices for hacking? Another interesting hack was presented at the Chaos Computer Congress (30C3), in Hamburg, Germany. The researchers demonstrated how it is possible to hack the microcontroller inside every SD and MicroSD flash cards that allow arbitrary code execution and can be used to perform a man in the middle attack . The Hardware Hackers  Andrew " bunnie " Huang and Sean "xobs"  described the exploitation method on their blog post ," it also enables the possibility for hardware enthusiasts to gain access to a very cheap and ubiquitous source of microcontrollers. " It seems that to reduce SD cards price and increase their storage capability, engineers have to consider a form of internal entropy that could affect data integrity on every Flash drive. Almost every NAND flash memory is affected by defects and presents problems like electron leakage between adjacent cells. " Flash memory is really
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