New Zealand’s stock exchange has been subjected to a cyber-attack for the second day running, it has been reported.
As covered by
the Guardian
today, at 11.24 am local time on Wednesday August 26, the NZX exchange went offline, causing some trading to be halted although connectivity was partially restored. The NZX acknowledged it had experienced “network connectivity issues,” leading to the NZX main board, NZX debt market and Fonterra shareholders market being placed on temporary hold. Those areas were subsequently allowed to resume trading at 3.00 pm.
This incident followed a distributed denial of service (DDoS) attack on the stock exchange the previous day, Tuesday August 25, which forced it to call a halt to trading at 3.57 pm. In a statement published on August 26 referring to this attack, the NZX suggested foreign hackers were to blame: “Yesterday afternoon NZX experienced a volumetric DDoS attack from offshore via its network service provider, which impacted NZX network connectivity. The systems impacted included NZX websites and the Markets Announcement Platform.”
It added: “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.”
Nick Turner, VP EMEA at
Druva,
said that attacks against high profile targets are more likely to be successful amid the ongoing COVID-19 pandemic: “Today’s second attack on New Zealand’s stock exchange is yet another reminder that remote work security challenges need to be addressed as a priority. Local governments and cities need to act fast, or risk putting their constituents’ health, safety, lives and most sensitive data at risk.
“Cyber-attacks have become a common threat against local governments who have become sitting ducks lacking the right infrastructure and technology to protect themselves against an attack as hackers look to seize critical data and take hostage over systems for hefty ransoms – or simply – to cause chaos on these establishments. From a hackers’ perspective, local governments and mission critical organizations are at their most vulnerable right now as a result of the pandemic.”
Jake Moore, cybersecurity specialist at
ESET, added: “As the world becomes increasingly connected, more defenses are required to protect against the bombardment of attempts to take down a site. DDoS attacks are common threats that can usually be avoided with the correct mitigation techniques. However, when a site experiences a massive influx of traffic that it is not prepared for, even huge organizations can be knocked off their feet relatively easily – and for long periods of time.”
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