Two Major Cyber Attacks disrupt service on major sites

An attendee looks at a monitor at the Parsons booth during the 2016 Black Hat cyber-security conference in Las Vegas, Nevada, U.S An attendee looks at a monitor at the Parsons booth during the 2016 Black Hat cyber-security conference in Las Vegas, Nevada, U.S. August 3, 2016. REUTERS/David Becker

By Jim Finkle and Dustin Volz

(Reuters) – Cyber attacks targeting the internet infrastructure provider Dyn disrupted service on major sites such as Twitter and Spotify on Friday, mainly affecting users on the U.S. East Coast.

It was not immediately clear who was responsible and Gillian Christensen of the U.S. Department of Homeland Security said the agency was “investigating all potential causes.”

Dyn said it had resolved one attack, which disrupted operations for about two hours, but disclosed a second attack a few hours later that was causing further disruptions.

In addition to the social network Twitter and music-streamer Spotify, the discussion site Reddit, hospitality booking service Airbnb and The Verge news site were among the companies whose services were reported to be down.

Amazon.com Inc’s web services division, one of the world’s biggest cloud computing companies, also disclosed an outage that lasted several hours on Friday morning. Amazon could not immediately be reached for comment.

The attacks were the latest in an increasingly menacing string of distributed denial of service, or DDoS, attacks disrupting internet sites by overwhelming servers with web traffic.

The U.S. Department of Homeland Security warned on Oct. 14 that hackers were using a powerful new approach to launch these campaigns – infecting routers, printers, smart TVs and other connected devices with malware that turns them into “bot” armies that can launch DDoS attacks.

“We have begun monitoring and mitigating a DDoS attack against our Dyn Managed DNS infrastructure,” the company said on its website. “Our engineers are continuing to work on mitigating this issue.”

Doug Madory, director of internet analysis at Dyn, told Reuters he was not sure if the outages at Dyn and Amazon were connected.

“We provide service to Amazon but theirs is a complex network so it is hard to be definitive about causality at the moment,” he said.

Dyn is a Manchester, New Hampshire-based provider of services for managing domain name servers (DNS), which act as switchboards connecting internet traffic. Requests to access sites are transmitted through DNS servers that direct them to computers that host websites.

Dyn’s customers include some of the world’s biggest corporations and Internet firms, such as Pfizer, Visa, Netflix and Twitter, SoundCloud and BT.

(Reporting By Jim Finkle in Boston and Dustin Volz in Washington; Additional reporting by Eric Auchard in Frankurt and Malathi Nayak in New York, Jeff Mason in Washington; Editing by Bill Trott)

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