![]() ![]() "It is hard to overstate how vulnerable the system is, and it's even more shocking that this exact model is currently used at over 1,100 universities, and in nearly 100,000 classrooms," Nair said. ![]() With that knowledge, he realized that there was no encryption on the device transmissions and it could be possible to mimic a real device. In his talk, Nair outlined how the RFID-based system was reverse engineered so he could learn how it works. "It is, of course, hacking."īuilding a Time Turner to Exploit a Modern University "Without the luxury of magic, what is the next best thing?" Nair asked. Nair noted that in the popular Harry Potter fiction series there is a magical device known as a Time Turner, which is used to help enable a student to be in two classes at the same time, via time travel. ![]() The system includes a base station for each classroom or lecture hall, and then each student is required to carry a device, which can also be used to answer multiple-choice questions. Nair explained that many schools use an RFID-based attendance system known as an iClicker to track whether or not a student is present. student Vivek Nair outlined a scenario where a hack of the attendance system could, in fact, enable him, or anyone else, to be in two places at the same time. In a session at the DEF CON 29 conference on August 7, Ph.D. If a computer science student has a scheduling conflict and wants to attend two different classes that occur at the same time, what should that student do? ![]()
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