Multivector and cloud computing attacks have been rising over the last twelve months, according to Link11. The share of multivector attacks – which target and misuse several protocols – grew significantly from 46% in the first quarter to 65% in the fourth quarter.
DNS amplification was the most used technique for DDoS attackers in 2019 having been found in one-third of all attacks. The attackers exploited insecure DNS servers, of which there were over 2.7m worldwide by the end of 2019, according to the Open Resolver Project.
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The average bandwidth of attacks keeps increasing by more than 150% within four years, reaching 5 Gbps in 2019, up from 2 Gbps in 2016. The maximum attack volume has also nearly doubled compared to 2018; from 371 Gbps to 724 Gbps.
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