Whisper lets you share secrets without the fear of it getting traced back to you. At least that's the pitch. Now, according to a Guardian report, the service is tracking the location of users that didn't want to be tracked. The report, which deep dives on several issues regarding user privacy and security, adds that Whisper is apparently also sharing info with the US Department of Defense and is retaining posts and user data in a searchable database. Responding to the claims, Editor-in-chief Neetzan Zimmerman says that Whisper "neither receive(s) nor store(s) geographical coordinates" from users who opt out of geolocation services. "User IP addresses may allow (a) very coarse location to be determined to the city, state, or country level."