5 Reasons DDoS Attacks Are Gaining Strength

2. Resurgence Of DNS Reflection Attacks

DNS Reflection attacks, the technique used in the high-profile DDoS campaign against the nonprofit antispam organization Spamhaus, is increasing in popularity, according to Prolexic. The firm said it mitigated such an attack against its name server in January. Although the attack was short, it was high in volume, reaching more than 20 Gbps. DNS attacks, Prolexic observed in the first quarter of 2013, increased nearly 7 percent over the previous quarter. The DNS Reflection attack technique has been used for about a decade and takes advantage of poorly configured DNS servers, helping boost the strength of DDoS attacks with fast and inexpensive bandwidth.

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