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DDoS Threat Report 2017 Q4

The quarterly report, which measured thousands of attacks from around the world, attributes the skyrocketing attacks to servers enabled with Domain Name System Security Extensions (DNSSEC), a significant new risk if not properly configured.

  • Distributed denial of service (DDoS) attacks using domain name server (DNS) amplification increased for more than 357% in the fourth quarter of 2017, compared to 2016.
  • The number of DNS reflection attacks soar 109.98% over the preceding quarter.
  • DNS amplification, UDP, and IP fragmentation contributed for the top three attack vectors in the quarter, with 16.10%, 15.31%, and 12.18% respectively.
  • More than 56% of all attacks exploit multiple vector combinations.
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In Q4, multi-vector, blended threats continued their predominance comprising 56.15% of recorded attacks, while single-vector attacks accounted for 43.85%. Of the multi-vector attacks, two-vectors accounted for 32.62% and three-vectors followed with 14.44%. The largest number of attack vectors seen in the quarter was nine.

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