Who might FIN4 be and where are they based? For once, not China or Russia. The most likely culprit was a criminal group based in the West or even the US itself - who saw that one coming? From public statements made to the media, FireEye executives said the group could even be trained in investment banking.
That would be an serious charge if any evidence of such a thing emerged because it implies a massive collapse in morality in fringe parts of an industry already badly strained by scandals during the financial crash of 2008. For the time being at least, the evidence is more ambiguous.
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