Challenge About the Tier-1 Operator Asian Tier-1 Operator Success Story Assuring Service Availability and QoE by Neutralizing Outbound IoT DDoS Attacks As one of the leading info-communications companies in the APAC region, this Tier-1 broadband operator offers a full range of information, communications and entertainment services for both consumer and corporate markets. The operator’s mobile network provides 4G, 3G and 2G services, while their HFC network delivers high- speed residential broadband services. The fixed network of this APAC Tier-1 operator was hit by a massive zero-day DDoS attack on its Domain Name Services (DNS) infrastructure. The attack overwhelmed the DNS systems and disrupted service to millions of customers. Surprisingly, the Denial of Service attack orig

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