A massive distributed denial of service (DDoS) attack against Dyn DNS caused turmoil online, with many top websites like Twitter, Github, Shopify and Spotify reportedly went offline affecting users mainly in the East Coast of the United States, some European and Asian countries.

According to Dyn DNS, the attack started at 11:10 UTC, and it targeted its Managed DNS service. Many websites and services that use Dyn DNS as their upstream DNS provider like SaneBox, Reddit, AirBnB, Twitter and Heroku experienced outraged and downtime, either partially or totally.

The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or any resource connected to the Internet or a private network, that resolves human readable web addresses (like “lhe.io”) against IP addresses.

It is yet to be identified who is behind this devastating DDoS attack. But looking at the intensity of the attack that managed to disrupt the DNS service used by some of the most popular websites in the world, tells a lot about the attackers’ abilities.

“This morning, October 21, Dyn received a global DDoS attack on our Managed DNS infrastructure in the east coast of the United States,” Scott Hilton, executive vice president for products at Dyn, said in a statement. “We have been aggressively mitigating the DDoS attack against our infrastructure.”

Dyn is still monitoring and mitigating the DDoS attack against its Managed DNS infrastructure, though company first said that it was able to restore the services completely.

Updated at 18:35 UTC:

The cyber attack is still continue as many more popular websites has been targeted like Amazon, PayPal, Payoneer, entertainment hub Netflix, media outlets like CNN, The Guardian, Wired, The Next Web, HBO and People, reported by Gizmodo.

An outrage map published by DownDetector showed service interruptions for Level3 Communications, a so-called “backbone” internet service provider, across much of the US east coast and in Texas. DownDetector is also reporting possible outrage for Google, Facebook, Pinterest, AT&T, SoundCloud, WhatsApp and many more US companies.

DownDetector Map
DownDetector’s outrage map for Level3 Communications. Courtesy: DownDetector

Dyn has just revealed that their Managed DNS advanced service is also experiencing issues that means possible delays in monitoring the attack.

Updated at 22:20 UTC:

Dyn confirmed that the issue has been resolved and their Managed DNS service is restored completely. This cyber attack was one of the deadliest in the history of internet where hackers targeted the DNS provider infrastructure instead of actual websites, forcing many top websites shutdown partially or completely.

Live Update on DDoS Attack Against Dyn Managed DNS on Dyn DNS

Read next: Google now tells you the best time to book your flight

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A passionate programmer, domainer, writer and photographer! Love writing about web development, latest trends in technology and domain name industry. Working hard to make the world a better place! Follow me at Twitter @attacomsian or visit my website www.attacomsian.com


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