Bloomberg The failure of Delta Air Lines Inc.’s worldwide computer network this week spotlights the vulnerability of the information systems sustaining the biggest US carriers, each of which has contended with major disruptions during the last year. Complex networks cobbled together over the decades need major overhauls requiring significant new investments, said Bob Edwards, a former chief information officer …

  Bloomberg Air Berlin Plc, the German airline that’s 29 percent-owned by Etihad Airways PJSC, said its second-quarter loss widened as costs increased as the carrier switched to an all-leased fleet and the euro declined against the dollar. The loss before interest and taxes almost quadrupled to 62.7 million euros ($69.9 million) from 15.9 million euros a year earlier, Germany’s …

  Bloomberg India’s finance minister has approved a proposal that clarifies how Apple Inc. could open stores in the fast-growing economy without initially having to source components locally, people familiar with the matter said. Arun Jaitley ratified a proposal that gives the information technology ministry the power to label a retailer of a single brand as a provider of cutting-edge …