Computer outages that grounded all United Airlines flights and shut down trading at the New York Stock Exchange for more than three hours on Wednesday have led to speculation that their systems were attacked by hackers.
The Wall Street Journal website also went down at about the same time as trading was halted at the NYSE, according to CNN.
But U.S. officials are denying that the outages are related and that they were caused by hacking, according to multiple reports.
The NYSE tweeted:
CNN Money reports that the NYSE had been having issues throughout the day Wednesday, before the shut down.
“They seemed to have rectified it earlier and then it happened again. Now they shut it all down,” Joe Saluzzi, co-head of trading at Themis Trading, told CNN.
The FBI reached out to the NYSE and told CNN, “no further law enforcement action is needed at this time.”
The White House said President Obama has been briefed on the issues:
A Former Broker Is Speculating That ‘A Certain Country’ Is Involved in the NYSE Outage
He said about Homeland Security’s denial that hacking caused the outage:
Brown is likely referring to China, which has seen its stocks fall this week, according to MarketWatch.
Also, the Twitter account @YourAnonNews, which is affiliated with the hacktivist group Anonymous, tweeted the night before the outage:
The group has not claimed to have caused the technical issues, and it appears to have just been a coincidence, one @YourAnonNews seems to be enjoying:
When Did the Outages Occur & What Caused Them?
The United Airlines outage was reported at about 7:50 a.m., leading to chaos at U.S. airports as all flights from the airline were grounded. Flights resumed at about 10 a.m.
The NYSE suspended trading because of a technical glitch at about 11:30 a.m.
“We’re currently experiencing a technical issue that we’re working to resolve as quickly as possible,” the NYSE said in a statement. “We will be providing further updates as soon as we can, and are doing our utmost to produce a swift resolution, communicate thoroughly and transparently, and ensure a timely and orderly market re-open.”
United Airlines says an issue with a router caused its outage, according to Reuters.