Each bank included in system has unique SWIFT code. All Service bureaus passed certification are published on a site www.swift.com. Usage of CBT of the head financial organisation in the divided mode (Shared Connection) or connection through the Service bureau. Besides SWIFTNet FIN assumes development of FIN functionality at the expense of use of standard qualities of SWIFTNet. The further development will be received by existing means of safety FIN (SLS/BKE/Card Readers) which will be replaced by standard means SWIFTNet PKI. Migration from connections to FIN on X.25 to SWIFTNet FIN will allow both to users and most SWIFT to cut the expenses by refusal of use of network X.25 and the out-of-date technologies accompanying the given protocol that already takes place in some countries. Connection of new users occurs every month. 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.