The night before the New York Stock Exchange temporarily suspended trading due to an “internal technical issue,” the hacker collective Anonymous had a cryptic message for Wall Street on Twitter.
“Wonder if tomorrow is going to be bad for Wall Street…. we can only hope,” said the tweet posted at 11:45 p.m. Tuesday.
The NYSE said it was experiencing a technical issue Wednesday afternoon and said it was not the result of a cyberbreach. Both the Department of Homeland Security and the White House said there was no indication of malicious actor involvement.
“We’re experiencing a technical issue that we’re working to resolve as quickly as possible,” the NYSE said in a statement. “We’re doing our utmost to produce a swift resolution & will be providing further updates as soon as we can.”
“The issue we are experiencing is an internal technical issue and is not the result of a cyber breach,” the statement continued. “We chose to suspend trading on NYSE to avoid problems arising from our technical issue. NYSE-listed securities continue to trade unaffected on other market centers.”
Still, Eric Scott Hunsader, a market structure expert told CNN that Wednesday’s outage was “the most significant outage since Nasdaq’s blackout” in 2013.
The NYSE resumed trading shortly after 3 p.m. Eastern time after nearly four hours.