New Zealands stock exchange (NZX) confirmed it was hit by a massive distributed denial of service (DDoS) attack from abroad that knocked it offline two days. Trading activity was interrupted until the connectivity was restored. New Zealand CertNZ warned financial firms of DDoS attacks with extortion purposes in November. Experts believe the attackers used DDoS-for-hire services (aka booters) The attack was able to be mitigated and connectivity has now been restored for NZX.”]
Source: https://securityaffairs.co/wordpress/107570/hacking/nzx-halted-ddos-attack.html