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Imperva: The median duration of DDoS attacks was 6.1 minutes in the first half of 2021

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The median duration of a network DDoS attack in the first half of 2021 was only 6.1 minutes, according to research from Imperva Research Labs. Organizations should be wary of these types of attacks, as they can be a distraction tactic and part of a larger multi-pronged attack.

DDoS attack duration graph Imperva: The median duration of DDoS attacks was 6.1 minutes in the first half of 2021

Based on an analysis of DDoS attacks on the network since January 2021, Imperva Research Labs has seen a noticeable increase in the volume of attacks carried out on Friday. Attackers recognize this is a great opportunity to catch organizations off guard as they head into the weekend, causing maximum chaos and disruption for the target. By comparison, Sunday saw the highest volume of daily DDoS attacks in 2020, suggesting attackers are changing their techniques.

The Imperva 2021 Global DDoS Threat Landscape Report also details a growing trend of unqualified cybercriminals involved in executing attacks. For the price of a cup of coffee, or $ 100 to really cripple a network, a DDoS-as-a-Service can be purchased online and create legitimate business impact and downtime. Unfortunately, the barrier to entry for a cybercriminal has never been lower, and the damage capacity has never been higher.

The median duration of a network DDoS attack in the first half of 2021 was only 6.1 minutes. Short, blunt attacks can overwhelm hybrid cloud and on-premises solutions, causing damage before backup cloud mitigation can begin. Often, attackers will hit the same target multiple times, making mitigation difficult unless permanent DDoS protection is in place. The challenge is that by the time an attack is noticed, it is already over and it is not known when it will start again. Shorter attacks can stay under the radar as organizations using unsophisticated DDoS mitigation technology configure detection thresholds that ignore lower activity levels. While IT staff are concerned about bringing a firewall or intrusion prevention system back online, attackers are busy installing malware or gaining access to other parts of the network.

Imperva Research Labs finds that the monthly volume and size of DDoS attacks on the network in 2021 has increased significantly compared to 2020. In the last year, the volume of DDoS attacks on the network has increased by 200% and the number packets – the true measure of attack intensity – increased by 300%.

The Imperva 2021 Global DDoS Threat Landscape Report comes from anonymized data collected from Imperva Cloud WAF and Imperva DDoS Protection products from 2020 through the first half of 2021.

Read the full Imperva report.

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