NYSE outage connected to hacker group?

Officials at the New York Stock Exchange say there is no malicious activity regarding the outage on 08 July 2015, but on Tuesday, hacker group Anonymous tweeted this message:

Anonymous has not claimed responsibility, but this is very strange.   

  

 

Then just now

 

The link listed is here, funny, but maybe nsfw, beware! 

And there was also the airline outage today caused by "technical issues"?  Maybe just a coincidence?  

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