New Zealand Treasury chief executive Gabriel Makhlouf has told Morning Report that Budget information taken from Treasury's systems came under attack 2000 times over 48 hours.
Treasury has called in the police to investigate what they are calling a deliberate and systematic hack of the Budget documents.
It comes after National revealed what it says are details from the government's Wellbeing Budget.
The party released three separate documents which it says reveal the funding for 20 policy areas, including health, defence, overseas aid, and justice.
National won't say how it got the information, but Simon Bridges has gone on the attack saying the party has acted "entirely appropriately". And he says the Finance Minister Grant Robertson had "smeared us to cover up his and the Treasury's incompetence".
He also said Mr Robertson will need to resign when the truth is revealed but he has yet explained what that means and he won't talk to Morning Report.
The Finance Minister Grant Robertson had agreed to talk to Morning Report, but has deferred to the the chief executive of the Treasury, Gabriel Makhlouf.