All sensitive credit card information remains hidden from the SITO IP POS system. SITO IP POS analyzes only IP/TCP/SSL/TLS transaction envelope and cannot see any encrypted payment card and financial transaction data. Neither private keys needed for sensitive data decryption nor any credit card information is stored on SITO IP POS appliance. According to these facts SITO IP POS does not have to be a part of PCI DSS scope. Anyway SITO IP POS can help in PCI DSS procedures since it can provide SIEM or other security systems with unique information not available by most of generic network security and monitoring systems.