Halliburton, the world's second-largest oilfield services company, has been hit by a cyberattack that has affected its operations and global connectivity networks. The attack, which appears to be a massive cloud-based ransomware, impacted business operations at Halliburton's north Houston campus. The company has acknowledged the issue affecting certain systems and is working with external experts to resolve it. The U.S. Department of Energy has stated that there are no indications the cyberattack is impacting energy services, although they are coordinating with interagency partners on the matter.