Source: http://valleywag.gawker.com/how-a-hacker-intercepted-fbi-and-secret-service-calls-w-1531334747

Network engineer Bryan Seely discovered a flaw in Google’s lax approach to their Google Maps system. He set up two fake listings for both the FBI and the US Secret Service, providing fake phone numbers. When unwitting citizens would call those numbers, they would dial into his number which would then reroute them to a real FBI location. However, they were using his line, and he would record the calls. Seely was eventually caught by the Secret Service but was let go soon after when they discovered he did it to prove a point after Google ignored his pleas to fix the problem.