Impersonation Problems with Check-in Services

Evan Schuman posts on security problems for check-in servces like FourSquare.

"Check-In Services Glitches Allow Customer Impersonation
June 17th, 2010The increasingly popular check-in services, where users let friends know where they are by “checking in” at specific retailers using their smartphones, have two major security flaws, according to one independent testing firm. The first allows consumers to easily impersonate other users—and thereby access their rewards, which means the stores are not attracting the consumer they wanted to attract—and the second defeats users’ efforts to go into a confidential mode, where their whereabouts are not supposed to be distributed ... "