Obvious OPSEC issue is obvious. Separate thread for max visibility and/or until actual category determined.

Criminal activity? Spying? Both?

The U.S. government is publicly acknowledging for the first time that it picked up on what appears to be unusual and unauthorized surveillance activity in the nation’s capital last year from cellphone-site simulators – devices that can be used to intercept calls and text messages covertly.

But the Department of Homeland Security says it had not determined the type of any devices possibly used or who might have used them, although it says their use by "foreign governments may threaten U.S. national and economic security."

The agency also did not say how or where any devices might have been used, admitting only that 'anomalous activity" observed "appears to be consistent" with the cellphone-site simulators and that it's "not aware of any current DHS technical ability to detect" them.