LONDON--(Marketwire - Jun 30, 2011) - Patrick Carroll, CEO of ValidSoft (www.validsoft.com), will speak at a conference on July 4 and 5 in London on "The Future of Cards and Payments," a gathering of senior representatives of banks, card issuers, and merchant acquirers. Industry-leading speakers will analyse how regulation, new technology and customer-driven services can generate business growth, reduce costs and increase customer loyalty. The topic of Carroll's presentation will be "Competitive Differentiation through Security."