Size of DDoS Attacks on Rise

Monday, September 25, 2017 @ 03:09 PM gHale

Distributed Denial of Service (DDoS) attacks are continuing to increase in size as the average size of attacks over 50 Gbps quadrupled over the past two years, researchers said.

In addition, 1 Tbps attacks that started last year with the Mirai botnet are also on the rise, with 42 percent of organizations reporting an average size of DDoS attacks greater than 50 Gbps. That level is a hike from two years ago when 10 percent of attacks hit that mark, according to the report from A10 Networks.

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“The gargantuan 1 Tbps attacks that started last year with the Mirai botnet make up a fraction of the DDoS landscape – two percent of respondents say the average size of DDoS attack their businesses face is 1 Tbps or more,” A10 Networks researcher Andrew Hickey said in a post. “That may sound small on the surface, but when compared to two years ago, it’s a startling difference. A similar survey conducted in 2015 found zero accounts of attacks of 1 Tbps or higher.”

Multi-vector DDoS attacks continue to increase and hit, with the percent of organizations that experienced between 6 to 25 attacks per year increasing from 14 percent in 2015 to 57 percent in 2017.

Even as DDoS attacks hit other areas, attacks at the network layer still top the list, with 29 percent of attacks hitting the network level.

The good news is DDoS defense has improved with the amount of downtime resulting from the assaults is declining.

The survey found this year, 15 percent of attacks resulted in greater than 25 hours of downtime, compared to 29 percent in 2015.

To fend off any kinds of attacks companies said they were in the process of increasing the budgets to boost their defense.

Along those lines, 74 percent of respondents were increasing their DDoS budgets, compared to 54 percent two years ago. The amount of overall budgets has also risen, from 22 percent to 29 percent, according to the report.

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