Franken's letter points out that, because the data is stored unencrypted on the iPhone and on any computer to which it syncs, "third parties could gain access to this file."
Avi Greengart, an analyst with Current Analysis, described the location-tracking revelation as "a black eye" for Apple, but he added that it isn't clear yet if "consumers are freaked out about this."
On Wednesday, two researchers announced at a technology conference in San Francisco that they had discovered the iPhone records latitude and longitude coordinates, along with a time stamp, in a previously unknown, unencrypted file that is duplicated on any computer with which that smartphone is synced.
Avi Greengart, an analyst with Current Analysis, described the location-tracking revelation as "a black eye" for Apple, but he added that it isn't clear yet if "consumers are freaked out about this."