U.S. probe finds bitcoin mining operation interfered with broadband network

By David Shepardson WASHINGTON (Reuters) - The Federal Communications Commission said on Thursday an investigation had found that a Brooklyn bitcoin mining operation interfered with T-Mobile US Inc's broadband network. The company had complained about interference to its 700 MHz LTE network in Brooklyn from radio emissions it said were coming from a Brooklyn residence mining for the cryptocurrency - verifying bitcoin transactions. The FCC said its investigation determined the user was "generating spurious emissions on frequencies assigned to T-Mobile’s broadband network and causing harmful interference." The agency's enforcement bureau said in a letter dated Thursday that continued use of an operation known as "Antminer s5 Bitcoin Miner" would constitute a violation of federal law and could result in fines, criminal prosecution or seizure of the equipment. T Mobile did not immediately respond to a request for comment. FCC Commissioner Jessica Rosenworcel said in a tweet the "letter has it all: #bitcoin mining, computing power needed for #blockchain computation and #wireless #broadband interference. It all seems so very 2018." (Reporting by David Shepardson; Editing by Susan Thomas)