A Secure Infrastructure is necessary to deploy trusted applications. Technology infrastructure is the means to achieving high availability, scalability and efficient security. It also includes Secure Networking to identify vulnerabilities, detect intrusions, respond to incidents and monitor threats. Internal and external access to networks must be authenticated and information protected, whether it is in transit across the Internet or stored on a server. And in many cases, additional integrity and accountability issues such as non-repudiation, archiving, access restriction and digital time-stamping need to be considered.

Infrastructure needs may include public key infrastructure, directory services, secure messaging, intrusion detection and enterprise systems security management. Integrated security solutions deal with a variety of security technologies including smart cards, biometrics, cryptography, firewalls and virtual private networks.