Brian Krebs has used google maps to plot the locations of victims of identity theft:

I based the story in part on a cache of stolen data I found online (more on how I obtained it in a bit). The data was being compiled by a password-stealing virus that had infected many thousands of computers worldwide; the particular text file that I found included personal information on 3,221 victims scattered across all 50 U.S. states.

— Tracking the Password Thieves, Brian Krebs, Security Fix,

He didn’t have to look up the locations of the victims to map them; the virus had already done that for him, sometimes accurately, sometimes not. The virus cared because banks flag transactions that are from unexpected geographical locations. Continue reading →