Fiserv, Inc. announced that Caribbean Integrated Financial Services (CarIFS) has upgraded to the latest version of POSH from Fiserv, a robust and flexible switch solution for payment transactions. CarIFS has been operating POSH since 2008 and chose to upgrade to deliver greater functionality and more secure processing services to its connecting members. CarIFS serves five commercial banks and three credit unions in the region, processing more than eight million transactions a year. The latest version of POSH is strategic to CarIFS’s long-term plan to support EMV™ chip card issuing and acquiring for its members, as well as to enable new payment technologies, especially mobile payments. This increased functionality will allow CarIFS to better serve their member financial institutions and consumers who want to transact whenever, wherever and however they choose. POSH has achieved PCI Payment Application Data Security Standard (PA-DSS) certification providing CarIFS with advanced security standards.