Special service of SWIFT - MACUG (Member Administered Closed User Group - the Closed group of users under the direction of Member of SWIFT) was created for this purpose. SWIFT (Society for Worldwide Interbank Financial Telecommunications) - the international interbank system of information transfer and fulfilment of payments. The Service bureau has no right to send and receive SWIFT-message on behalf of its own so that excludes a competition with the financial organisations. Each bank included in system has unique SWIFT code. One SWIFT terminal established at the client is used for an exchange of internal and international messages with all serving banks. In 2000 by means of FIN it was transferred over 1.2 billion messages. Daily over 9 million messages is transferred. SWIFTNet FIN gives access to FIN service by means of SWIFTNet using IP connections. Infrastructure of SWIFTNet includes a set of completely administered services of safety of the information constructed on the basis of technology PKI.