The chief executives of Goldman Sachs Group Inc. and Citigroup Inc. are the latest bank bosses to be hooked by an email prankster trolling top Wall Street brass, exposing a low-tech gap in banks’ cybersecurity armor. Goldman’s Lloyd Blankfein and Citigroup’s Michael Corbat, as well as Citigroup consumer-banking chief Stephen Bird, responded over the weekend to emails sent by the anonymous prankster masquerading as top executives at...

Source: Wall Street Journal June 12, 2017 19:52 UTC