New Zealand: National Cyber Security Centre issued warning on increased malicious cyber activity

On 6 March 2026, New Zealand’s National Cyber Security Centre (NCSC) issued an advisory urging organisations to increase vigilance against malicious cyber activity linked to evolving geopolitical developments involving Iran. The NCSC stated that it had received incident reports indicating increased brute-force attempts and low-level denial-of-service (DoS) activity targeting organisations. The NCSC advised organisations to strengthen cyber defences, monitor networks for anomalous activity, and report suspicious incidents to support the national cyber-threat response. The advisory also recommended mitigation measures including preparing for DoS incidents, protecting systems from ransomware and unauthorised access, and implementing network separation and segmentation.