Bloomberg The US Air Force’s top general said the estimated cost to operate and maintain its version of Lockheed Martin Corp.’s F-35 jet is a serious issue that’s sparked a search for savings by the service and senior Pentagon acquisition and support officials. “Are O&S sustainment costs a major concern?” General David Goldfein, the Air Force chief of staff, said, …

Bloomberg Under Armour Inc., joining a growing list of corporate victims of hacker attacks, said about 150 million user accounts tied to its MyFitnessPal nutrition-tracking app were breached earlier this year. An unauthorised party stole data from the accounts in late February, Under Armour said. It became aware of the breach earlier this week and took steps to alert users …

Bloomberg Different threats from major shifts in two industries are pushing Walmart Inc. and health insurer Humana Inc. towards the same solution. Amazon.com Inc. has taken direct aim at the giant retailer by siphoning customers out of its stores. Humana’s rivals are striking deals to make them one-stop health superstores with insurance, drug coverage, pharmacies, clinics and doctors. A deal …