The European Markets and Securities Authority is ditching its legacy architecture to cope with massive volumes of reported data and new supervisory responsibilities. The regulator is in the final stages of formalizing a deal with a managed service provider that will give the regulator the big data capabilities to operate on the Microsoft Azure cloud platform. The European Commission will officially sign the new contract at the end of June, Paul Hussein, team lead of supervision and analysis systems at ESMA, tells WatersTechnology.