As of the time of this writing, none of the entities involved have expressed that they suspect a malicious source as the cause of their cyber failures.
In a string of bizarre circumstances, the New York Stock Exchange, the Wall Street Journal, and United Airlines all fell offline today.
“NYSE/NYSE MKT has temporarily suspended trading in all symbols,” said the exchange.
The Wall Street Journal fell offline this morning and United Airlines was forced to ground all planes for just over an hour as it wrestled with what it described as a “network connectivity issue.”
We experienced a network connectivity issue. We are working to resolve and apologize for any inconvenience.
— United (@united) July 8, 2015
However flights with United now appear to be returning to normal, though the grounding will have ripple effects on scheduling for days to come.
We're recovering from a network connectivity issue & restoring flight ops. We’ll have a waiver on http://t.co/ufFoKFTNNe to change flights.
— United (@united) July 8, 2015
According to the Huffington Post’s Jennifer Bendery, the Department of Homeland Security has issued a statement that there is “no indication” of a cyber attack behind today’s suspicious incidents.
DHS official: "No indication" of a cyber attack behind #NYSE, United Airline and/or WSJ site.
— Jennifer Bendery (@jbendery) July 8, 2015