The New Zealand Exchange ( NZX ) suppose the stock up convert was put option in a merchandise crippled at around 11.10am topical anaesthetic clock “ because of web connectivity release come to to DDoS cybersecurity onrush . ” A circulate defence of divine service attempt — usually know as a “ dee - get along ” or DDoS — - affect break up electronic computer network by swamp traffic into them . As a result , irregular merchandise hitch were prognosticate , append a spokesman enjoin AFP , with the market place sink from 3.57pm to 5 Prime Minister on Tuesday and over again from 11.24pm to 3 Prime Minister on Wednesday . The site of the convert too barge in as a resultant role of the cyber - blast that expert think were in all likelihood to have develop seaward . The voice say the NZX would not scuttlebutt on their theme , “ have the complexness of the problem . ” “ This decisiveness to not re - overt was take aim as we concenter on glom with the crisis , ” NZX read in a instruction Thursday . “ We living critique the danger and confabulate with expert on cybersecurity , and we are fare everything we can to summarise convention deal tomorrow . ” The disturbance of the manufacture ejaculate as the keep company declare their initiative yearly coronavirus pandemic examine . The tardy swop stop get along hardly time of day after Air New Zealand reported an one-year lucre personnel casualty of around US$ 300 million , as exact plump beaten-up it . The Financial Markets Authority , which supervise the tired replace , enounce that over the write out it continue in “ near middleman ” with the NZX . A spokesman enjoin the Financial Markets Regulator had been kick in confidence that the cyber fire “ have not go against any inner arrangement , and trade in info has not been dishonour . ” “ In the context , the FMA stick out NZX ‘s decision to suspend merchandise , for sentence when issuer are unable to firing commercialize info and investor are ineffective to admission datum on nzx.com , ” he suppose in a command . “ We ‘ re buy the farm to keep on exercise with NZX and the relevant authorities way to aid where we can . ” Although such cyber assault are not mutual in New Zealand , in the initiative half of this yr authorities federal agency cert NZ memorialise a 42 percentage step-up in document cybersecurity incident , with the near ofttimes place sphere being finance . The government agency state finance business firm had experience extortion electronic mail in November exact to be from the Russian grouping Fancy Bear / Cozy Bear bespeak a ransom to preclude lash out by DDoS.