NZX website down again in apparent second attack

01042020 PHOTO RICKY WILSON/STUFF COVID-19 Coronavirus Alert Level 4 Lockdown NZX NZ Stock Exchange Ticker

Ricky Wilson/Stuff

01042020 PHOTO RICKY WILSON/STUFF COVID-19 Coronavirus Alert Level 4 Lockdown NZX NZ Stock Exchange Ticker

Less than a day after the NZX suffered a serious offshore cyber attack, its website has gone down again in an apparent second attack.

A spokesman said the NZX was having connectivity issues again and was working with its service provider, Spark, to address it.

“It appears that this is similar to yesterday’s issue. NZX halted trading in its cash markets at approximately 11.24am,” he said.

Spark was investigating the source of the issue and the NZX will provide further information once available, he said.

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* Major DDoS attack causes NZX power outage, trading halt

On Tuesday afternoon the NZX was brought to an abrupt halt just before 4pm due to a major power outage caused by a distributed denial of service (DDoS) attack from overseas.

A joint statement from the New Zealand Exchange and network provider Spark said at the time that as a result of the attack the stock exchange operator had decided to halt trading in its cash markets at about 3.57pm.

“A DDoS attack aims to disrupt service by saturating a network with significant volumes of internet traffic. The attack was able to be mitigated and connectivity has now been restored for NZX,” the statement said.

The NZX issued a statement on Wednesday morning explaining that the Tuesday attack had impacted the NZX websites and the market announcement platform. It said the attack was able to be mitigated and that connectivity has been restored for NZX.

Dr Rizwan Asghar at the School of Computer Science at Auckland University said it was very hard to identify the source of cyber attacks like this because the culprits tended to hide their IP addresses.

”The real root cause is not only the attacker but also the vulnerabilities we have on the way to the target or the victim,” he said.

Targets of these attacks could be any kind of political infrastructure. There were sophisticated solutions to mitigate the effects of an attack, so it depended what methods were being used by the target as to how severe an attack could be, he said.

More to come.

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