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All posts tagged with: "Outage Report"

Comcast Fiber Outage Rips the Internet

Posted by on June 29th, 2018
July 2nd, 2018

Earlier today, beginning at 9:20am Pacific Time, Comcast suffered a network outage on its backbone that left millions of Internet users in the United States—even beyond their own subscriber base—unable to reach critical sites and services. The outage wasn’t contained to a particular region, as Internet users from Seattle to New York were affected. The significance of this outage was not only in its massive scope but also in its length, which stretched for nearly three hours—effectively an eternity in Internet timescale.… Read More »

AWS US-East-2 Outage and Monitoring Microservices

Posted by on May 31st, 2018
May 31st, 2018

On the morning of May 31st, 2018, shortly after midnight Pacific Time, users reported an outage in Amazon Web Services’ (AWS) US-East-2 region. An issue with Internet connectivity caused this data center to lose reachability to the Internet, impacting the functioning of any apps with external dependencies such as API services and integration with 3rd party SaaS applications.… Read More »

Anatomy of a BGP Hijack on Amazon’s Route 53 DNS Service

Posted by on April 24th, 2018
April 24th, 2018

How does one steal crypto-coins? By hacking DNS and BGP – the two cornerstone protocols governing the Internet. With any cryptographic system, one way to compromise it is to be a man in the middle (MITM) when a transaction is taking place. Both ends of the transaction believe they’re talking to a legitimate party at the other end, but in reality, a malicious actor sits in the middle and alters the information being passed through to their advantage. In case of cryptocurrency, it could be the public key of the transfer recipient. … Read More »

Comcast Suffers Outage Due to Significant Level 3 BGP Route Leak

Posted by on November 7th, 2017
November 8th, 2017

On Monday morning, November 6th 2017, from 9:45am-11:25am Pacific, Comcast suffered a nationwide outage sending several million users of the popular Internet Service Provider into a frenzy. Our analysis has revealed that Level 3 leaked over a thousand routes belonging to Comcast subsidiary networks and their customers. The immediate effect was that instead of traffic going through the Comcast backbone to reach these networks, traffic was forced to go via Level 3.… Read More »