The National Party in't satisfied by assurances given by Prime Minister Jacinda Ardern about the use of the video conferencing system Zoom for Cabinet meetings.
Ms Ardern says Cabinet has agreed not to discuss anything classified above 'restricted' in those meetings.
But National's GCSB & NZSIS spokesperson, Gerry Brownlee, says that means incredibly important decisions are being made by a very small group of Ministers.
He spoke with Māni Dunlop.