Several financial institutions in New Zealand and the websites of its National Postal Service were temporarily shut down on Wednesday, with officials saying they were battling cyberattacks. The country’s Computer Emergency Response Team (CERT) said it was aware of the DDoS (Distributed Denial of Service) attack targeting several organizations in the country. “It is monitoring the situation and working with affected parties where we can,” CERT said on its website.
According to local media reports, some of the websites affected by the attack include the New Zealand site of the Australia and New Zealand Banking Group and the New Zealand Post. In a Facebook post, ANZ told customers that it is aware that some of them are not able to access online banking services. “Our technical team is working hard to fix this, we apologize for any inconvenience this may cause,” Post said.
Representatives for ANZ did not immediately return a request for comment. The NZ Post said the “intermittent disruptions” on its website were due to an issue with one of its third-party suppliers.
Several customers took to social media to report an outage at KiwiBank, a small lender partly owned by NZ Post. KiwiBank apologized to customers in a Twitter post and said it was working to fix “intermittent access” to services in its app, internet banking, phone banking and website. In DDoS attacks, the servers of high-profile institutions are congested with oncoming traffic. From unnecessary requests that try to overload the system and drown out legitimate requests.
In January, a cyberattack led to a serious data breach at New Zealand’s central bank, following a series of attacks on the operator of the New Zealand stock exchange a year earlier. A group of hackers also targeted hospitals in May.