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World record for largest DDoS attack broken - again

(Image credit: Image Credit: Profit_Image / Shutterstock)

The record for the largest DDoS attack ever has been broken yet again, just a week after a new high was set.

Research by NETSCOUT Arbor confirmed the news, saying a 1.7Tbs attack was recorded against a customer of a U.S.-based service provider.

A week earlier, Akamai confirmed the first ever terabit attack, recorded at 1.3Tbps, against GitHub.

Arbor believes this second attack is important for multiple reasons, not just the fact that it's huge. It is important because it should start triggering alarms to network operators which should now start preparing for, what it calls “mega attack sizes”. Another reason why it is important is due to the fact that the service provider’s defences were impenetrable – no outages were detected. These large-scale attacks were made possible through the abuse of Memcached servers, amping up traffic 50,000 times.

Arbor Networks' Carlos Morales is confident we will be seeing more and more of these attacks, mostly because number of weak Memcached servers is quite large.

"While the internet community is coming together to shut down access to the many open memcached servers out there, the sheer number of servers running memcached openly will make this a lasting vulnerability that attackers will exploit," he wrote in a blog post here (opens in new tab).

Arbor says it is now critical for companies to start taking the steps necessary to protect themselves for potentially enormous attacks.

Image Credit: Profit_Image / Shutterstock

Sead Fadilpašić is a freelance tech writer and journalist with more than 17 years experience writing technology-focussed news, blogs, whitepapers, reviews, and ebooks. And his work has featured in online media outlets from all over the world, including Al Jazeera Balkans (where he was a Multimedia Journalist), Crypto News, TechRadar Pro, and IT Pro Portal, where he has written news and features for over five years. Sead's experience also includes writing for inbound marketing, where he creates technology-based content for clients from London to Singapore. Sead is a HubSpot-certified content creator.