For leaders of an institution dedicated to the pursuit of information and the preservation of knowledge, the Australian National University’s top brass are remarkably fond of Signal’s “disappearing message” feature.More than 50 pages of chats between interim vice-chancellor Rebekah Brown and half a dozen university deans are at the centre of the latest governance debacle to hit the Canberra institution.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles