“Iran pulled off likely the most significant wartime cyberattack against the U.S. in history, leveraging its hacking powers to cause major disruptions at a global medical-equipment firm that struggled to bring itself back online in recent days,” the Wall Street Journal reports.“The attack brought a conflict that until now had been largely confined to the Gulf region to the American homeland and offered a preview of the potential for how Iran may broaden its response to the U.S. and Israeli military campaign.”