Large organizations and governments may operate more than one SOC to manage different groups of
information and communication technology or to provide redundancy in the event one site is unavailable. SOC work can be outsourced, for instance, by using a
managed security service. The term SOC was traditionally used by governments and managed computer security providers, although a growing number of large corporations and other organizations also have such centers. The SOC and the
network operations center (NOC) complement each other and work in tandem. The NOC is usually responsible for monitoring and maintaining the overall network infrastructure, and its primary function is to ensure uninterrupted
network service. The SOC is responsible for protecting networks, as well as web sites, applications, databases, servers and data centers, and other technologies. Likewise, the SOC and the physical security operations center coordinate and work together. The physical SOC is a facility in large organizations where security staff monitor and control security officers/guards, alarms, CCTV, physical access, lighting, vehicle barriers, etc. Not every SOC has the same role. There are three different focus areas in which a SOC may be active, and which can be combined in any combination: • Control - focusing on the state of the security with compliancy testing, penetration testing, vulnerability testing, etc. • Monitoring - focusing on events and the response with log monitoring, SIEM administration, and incident response • Operational - focusing on the operational security administration such as identity & access management, key management, firewall administration, etc. In some cases the SOC, NOC or physical SOC may be housed in the same facility or organizationally combined, especially if the focus is on
operational tasks. If the SOC originates from a
CERT organisation, then the focus is usually more on
monitoring and
control, in which case the SOC operates independently from the NOC to maintain
separation of duties. Typically, larger organizations maintain a separate SOC to ensure focus and expertise. The SOC then collaborates closely with network operations and physical security operations. ==Facilities==