01 March 2018

GitHub hit with the largest DDoS attack ever seen

DDoS attackers have found a new way of magnifying their attacks, with experts warning that bigger attacks are likely.

Republished from ZDNet.



GitHub has revealed it was hit with what may be the largest-ever distributed denial of service (DDoS) attack.

The first portion of the attack against the developer platform peaked at 1.35Tbps, and there was a second 400Gbps spike later. This would make it the biggest DDoS attack recorded so far. Until now, the biggest clocked in at around 1.1Tbps.

In a post on its engineering blog, the developer platform said that, on Feb. 28, GitHub.com was unavailable from 17:21 to 17:26 UTC and intermittently unavailable from 17:26 to 17:30 UTC due to the DDoS attack.

Github said that at no point "was the confidentiality or integrity of your data at risk."

"Between 17:21 and 17:30 UTC on February 28th we identified and mitigated a significant volumetric DDoS attack. The attack originated from over a thousand different autonomous systems across tens of thousands of unique endpoints. It was an amplification attack using the memcached-based approach described above that peaked at 1.35Tbps via 126.9 million packets per second," GitHub said.

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