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.
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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