New York University’s Polytechnic Institute has discovered a Skype security flaw that leaves Skype users’ locations and P2P sharing activity accessible to hackers. The security hole was discovered while NYU scientists monitored 10,000 Skype users and 20 volunteers during a two-week period. “A hacker anywhere in the world could easily track the whereabouts and file-sharing habits of a Skype user – from private citizens to celebrities and politicians – and use the information for purposes of stalking, blackmail or fraud,” professor Keith Ross from computer science NYU-Poly’s computer science program said. Hackers can also keep track of a Skype user’s movements as he or she places calls from various locations. The scientists were able to follow a Skype user during a vacation from New York to Chicago and then all the way home to France, Financial Post explained. “A fairly straightforward and inexpensive fix would prevent hackers from taking the critical first step in this security breach – that of obtaining users’ IP addresses through inconspicuous calling,” the scientists said. Skype chief information officer Adrian Asher said his company will work to improve the security of Skype’s software.