Just four of the ACC's board remain after it was revealed this evening that another member left last week in the wake of the Bronwyn Pullar privacy breach scandal.
The resignation of board member Murray Hilder follows the departures of chief executive Ralph Stewart, chairman John Judge and board members Rob Campbell and John McCliskie, 3 News reported tonight.
The exits follow a police decision not to lay charges against ACC claimant and former National Party insider Bronwyn Pullar and her subsequent 60 Minutes interview in which it was implied that it was ACC managers who first suggested a deal with her for the return of leaked data about thousands of clients.
Details of around 6700 ACC clients were sent to Ms Pullar, sparking an investigation by the Privacy Commissioner and Auditor General. The scandal had already claimed the scalp of former ACC minister Nick Smith after it was revealed he lent his support to Ms Pullar while minister.
An anonymous source told 3 News tonight Mr Hilder had had a "gutsful" of the political behaviour surrounding the case.