It's a penalized site on HN, but this article was vouched for by established users. If there's a more substantive article for this particular story, we can change the URL, but so far the only other one we saw was merely about a spelling mistake. Occasionally the low-quality source has the higher-quality article.
The zerohedge article has more information than either of those articles. It uses those two as sources, plus some Philippine newspapers. Right now it gives a fairly effective summary of the situation. Switching to either of those would be a downgrade, in my opinion.
The zerohedge article is misleading (e.g. "And yes, it does appear that hackers managed to bypass the Fed's firewall") and lacks any semblance of objectivity.