The Prime Minister says the findings of a report on the Government Communications Security Bureau are not controversial but the agency is in for a shake-up.
John Key has received Cabinet secretary Rebecca Kitteridge's report on the Government spy agency but says he will not release it until he returns from China in about two weeks.
He says he will show the report to Parliament's intelligence committee before making it public.
"The best way to characterise is it's been a very thorough report. It's identified some weaknesses. Those weaknesses have been long-standing and it has a series of recommendations that the Government will need to address."
Mr Key also told his post-Cabinet news conference he had informed both the State Services Commission and the Cabinet about his friendship with GCSB director Ian Fletcher before Mr Fletcher was appointed director of the GCSB.