•See our Herald Interactive: Dirty secrets of your KiwiSaver
The matter was looked at by Police and the Financial Markets Authority, and while a decision was made not to investigate providers for criminality, the subsequent lightning reform of the sector has drawn international attention.
Within two months $109m of identified controversial stocks had been dumped by KiwiSaver providers - including 99.9 per cent of investments in the banned weapon-makers - with attention turning how to manage exposure to such firms held indirectly through index investments.
The increased churn levels, representing KiwiSaver clients dissatisfied over the former status quo taking their business elsewhere, at least partly explains the swift action.
Along with providers divesting direct holdings in controversial companies, concern by fund managers over the issue prompted giant international provider Vanguard Funds to establish a tailored New Zealand-focused fund excluding landmine, nuclear weapon, cluster-bomb and tobacco-makers.
The move would possibly to see a significant shift in capital, with KiwiSaver providers having invested billions into broad international index funds in order to secure global exposure.