September 21, 2021

Failed network configuration changes by T-Mobile caused outage: Cloudflare chief

The breakdowns experienced by many businesses in the United States on Tuesday (Australian time) were apparently due to changes made by T-Mobile to its network configuration, resulting in a series of cascading failures for its users that affected both voice and data networks, CEO and co-founder of the web infrastructure and website security company, Cloudflare says.

Matthew Prince said in a series of tweets that this has led many users to complain on Twitter and other forums that they cannot access popular forums.

“So now people are looking for an explanation and they come across sites like the Arbor Networks attack card,” Prince said. “Sounds terrifying today! The point is, it still looks terrifying. It’s a marketing gimmick set up to sell DDoS mitigation services, so it’s no surprise . “

T-Mobile CEO Mike Siewert made no mention of the configuration issues in a short message he posted on the company’s website at 8:45 p.m. PST on June 15 (1:45 p.m. AEDT June 16): “Starting just after 12 p.m. ET (3 a.m. AEDT June 16) and throughout the day, T-Mobile has experienced and a text issue that has had an intermittent impact on customers in US markets, ”he wrote.




“We’re recovering from this now, but it may still take several hours before customer calls and texts are fully recovered. Neville Ray shared updates throughout the day, but I wanted to share the latest ones. news about what we know and what we are doing to address it.

“This is an issue with IP traffic that created significant capacity issues in the core network throughout the day. Data services have been running all day and customers have been using services. such as FaceTime, iMessage, Google Meet, Google Duo, Zoom, Skype and others to connect. “

Prince’s explanation seems to be correct as there hasn’t been a single article about this so-called DDoS attack on the North American Network Operators Group mailing list – and whenever there is a major outage due to DDoS or some other reason, like a BGP error, this group is full of chatter.

Prince said that from Cloudflare’s perspective, there was a lot of evidence that there had not been a major DDoS attack. “First, the traffic from WARP to the supposedly impacted services is normal and has not increased the number of errors.

“Second, there is no spike in traffic to any of the major Internet exchanges, which is what you see in actual DDoS attacks and you would certainly have in a so-called disruptive one.

“Finally, our team knows the network operators of almost every other major Internet service and platform, and none of them are reporting anything abnormal.”

He ended with a bang at T-Mobile, saying no one was having a bad day, “Except T-Mobile, who are almost certainly having a bad day entirely of making their own team. #hugops. And don’t ‘Don’t worry, that’s one thing that doesn’t need to be added to the 2020 splurge list. “

Former NSA hacker Jake Williams said iTWire that it was just T-Mobile then Down Detector showing false positives “because people were talking about T-Mobile crashing on other platforms and it turned into a self-licking ice cream cone” .

Williams, who now runs his own business, Rendition Infosec, said: “I haven’t looked at the root cause inside T-Mobile – other than a few Duo issues, it didn’t impact me. or on clients “. Duo is an enterprise multi-factor authentication that primarily uses push notifications but could fall back on SMS depending on the configuration, he added.

The quotes in the last two paragraphs of this article were mistakenly attributed to UK security expert Kevin Beaumont at the time of publication. The error is regretted and has been corrected.

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