Merck hit by new global ransomware attack

It's happening again.NotPetya, a new variety of ransomware, is wreaking havoc around the world, and Merck & Co. is one of the first U.S. companies to report being hit. NotPetya follows the Wannacry ransomware attacks in May that took down thousands of computers worldwide.The drugmaker wrote on Twitter that its computer network was "compromised today as part of global hack."Another U.S. organization, Heritage Health System, also may have been affected. The Beaver, Pa.-based system reported that its computers are down...