Though they might get lost in all the other security threats exacerbated by the Covid-19 pandemic, DDoS attacks, unsurprisingly, ticked up during the first part of 2020, most handily absorbed by the internet backbone – and the defensive efforts of targeted companies.

Disruptions at AT&T, Sprint, T-Mobile and Verizon and streaming companies in mid-June stoked concerns that coordinated DDoS attacks were under way. Speculation swirled that China was behind a broader attack, but ultimately the disruption was largely blamed on misconfigurations by T-Mobile rather than a malicious attack on the internet backbone.

Then during the second half of June, Amazon Web Services reported that it mitigated a 2.3-terabit attack in mid-February, the largest DDoS attack ever recorded. According to the AWS report, the attack was approximately 44 percent larger than any network volumetric event previously detected on AWS. CLDAP reflection attacks of this magnitude caused three days of elevated threat during a single week in February 2020 before subsiding.

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