Experts dismiss massive DDoS cyberattack claims after Facebook, Instagram, Fortnite, T-Mobile and Comcast went down – The Sun

EXPERTS have dismissed claims there was a massive DDoS cyberattack on Monday after Facebook, Instagram, Fortnite, T-Mobile and Comcast went down.

Despite initial thoughts, security experts say the outage was caused by network changes T-Mobile was making, Newsweek reported.

Fears were sparked about a possible distributed denial-of-service (DDoS) attack when more than 100,000 T-Mobile customers reported issues with their service in the afternoon, according to

AT&T, Verizon and Sprint customers said they had issues in Florida, Georgia, New York, and California.

Users also said they had issues accessing Facebook, Instagram, and the game Fortnite.

Several people – including an account linked with hacktivist group Anonymous – sparked fears over a DDoS outage.

That idea was struck down by experts, however.

Matthew Prince, Co-founder and CEO of web performance and security company Cloudfare, said although the DDoS attack "makes a good headline," that it's "not accurate." 

Credit: Twitter



"The reality is far more boring," Prince tweeted.

Prince said T-Mobile was making changes "in their network configurations."

"Unfortunately, it went badly. The result has been for around the last 6 hours a series of cascading failures for their users, impacting both their voice and data networks," Prince added.

He said people who were in search of an outage explanation found networks attack maps, which "always looks terrifying."

Verizon told Fox Business on Monday that the mobile service is running smoothly.

"Verizon has robust layers of Distributed Denial of Service (DDoS) protections that we monitor 24 x 7 to protect our network and customers,” a company spokesperson told Fox.

“We have seen no DDoS activity that would impact our networks today."

What is a DDoS attack?

  • A distributed denial-of-service (DDoS) attack is an attempt to make an online service unavailable by flooding it with traffic from many different sources
  • The attacks target a variety of key resources including banks and news websites, which creates problems in ensuring people can publish and access important information
  • Since the incoming traffic comes from multiple sources, it's difficult for the server to distinguish legitimate user traffic from attack traffic when there are multiple points of origin
  • Some attacks involve the forging of IP addresses, which further complicates finding the source of the attack and defeating it
  • Monday's DDoS attack affected the four major telecom companies in the US, plus social media sites like Facebook, Instagram, and Twitch

He said, however, that traffic service was normal and spikes that would normally be seen in a DDoS attack were not shown.

He said that "none" of the operators at "other major Internet services and platforms" reported anything out of the ordinary.

Cybercrime investigative journalist Brian Krebs also said he saw no indication of a DDoS attack.

"I have found no indication these outages are DDoS related," Krebs tweeted.

"Rather, there may be Sprint/T-Mobile issues related to a wonky update in the systems from the Sprint side to help merge with T-Mobile," he added.

T-Mobile CEO Mike Sievert shared a statement himself on Monday night at 8:45pm PST, saying the outage was "an IP traffic related issue that has created significant capacity issues in the network core throughout the day."

"I can assure you that we have hundreds of our engineers and vendor partner staff working to resolve this issue and our team will be working through the night as needed to get the network fully operational," Sievert wrote.

In a later update at 10:03pm, Sievert said the issues had been "resolved."

"We again apologize for any inconvenience and thank you for your patience," Sievert wrote.

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