A notable number of cell phone towers around the United States are rogue that, according to latest report, could spoof legitimate towers and intercept calls. The research carried out by ESD America, a defense and law enforcement technology firm based in Las Vegas, shows that a rogue cell phone tower, also known as “interceptors”, may process the call. The company that makes the super-secure CryptoPhone, makes one of the oldest and most expensive high-security cell phones in the market.
Source: https://thehackernews.com/2014/09/fake-cell-phone-towers-could-be_4.html