eSS performs a variety of Information Technology (IT) audits for Financial Institutions, Merchants, Processors, Encryption Service organizations (ESOs), Independent Service Organizations (ISOs), Key Loading/Injection Facilities, POI/PED Manufacturers and so on.


  • PCI PIN Security assessments (covering the standard technical set, Normative Annex A and Normative Annex B) version 2.0, per Visa requirements of its direct connect processing members and their Third Party Agents (TPAs).
  • TR-39 audit of ATM operations in banks and credit unions, per requirements by Star, NYCE and Pulse EFT networks of all their members.
  • TR-39 audit of PIN debit POS transactions for Merchants per requirements by Star, NYCE and Pulse EFT networks.
  • Subsections of TR-39 audit that apply to ISO, ESO and KLD facilities, as required by the members of EFT networks.
  • General enterprise data security audits per ISO 27001 (formerly known as BS 7799) audit guideline.


  • Diebold Nixdorf

  • Ingenico (France, Milan, Brasil, China)

  • Wincor (Germany, Brasil)
  • Royal Bank of Canada
  • First National Bank of Omaha
  • Arab Financial Services (Bahrain)
  • Shazam EFT Network
  • National Bancard Services (NBS)
  • Switch Commerce Processor
  • NRT / TNS Processor
  • Global Payment Centre Processor (Antigua)

  • POS Data KIF

  • ID Tech KIF (USA, Taiwan)

  • Bay Area Rapid Transit (BART)
  • Safeway Inc.
  • Stater Bros Super Markets
  • Ahold Markets

  • And Many More!