Four gas pipeline operators in the U.S. have had to shut down their communications systems after breakdowns caused by cyberattacks, fueling fear of more hostile cyberactivity to come. Energy Transfer Partners, Boardwalk Pipeline Partners, and a unit of Chesapeake utilities Corp. reported communications system breakdowns earlier this week and now a fourth pipeline operator, Oneok, has joined them, saying it had shut down its system as a precaution after reports of a third-party provider being targeted by cybercriminals. The Department of Homeland Security is still collecting data on the occurrences, Bloomberg reports . The third-party provider that two of the companies affected identified as their partner, Latitude Technologies, said it did not believe any customer data had been compromised in the attack, but was still investigating matters. Latitude Technologies, a unit of Energy Services Group, is a provider for Energy Transfer Partners and Eastern Shore Natural Gas—the Chesapeake Gas […]