WASHINGTON (Reuters) -A hacker who breached the communications service used by former Trump national security adviser Mike Waltz earlier this month intercepted messages from a broader swathe of American officials than has previously been reported, according to a Reuters review, potentially raising the stakes of a breach that has already drawn questions about data security in the Trump administration. Reuters identified more than 60 unique government users of the messaging platform TeleMessage in a cache of leaked data provided by Distributed Denial of Secrets, a U.S. nonprofit whose stated mission is to archive hacked and leaked documents in the public interest. The trove included material from disaster responders, customs officials, several U.S. diplomatic staffers, at least one White House staffer and members of the Secret Service.