While security vendors offer a variety of services, you must pick and choose to match your needs. The scan or test is based on known profiles or vulnerability. An organization would typically pay a monthly fee for this service, which the service provider may perform daily, weekly, monthly or quarterly. Services provider monitors the network for suspicious activity and prevents attacks from occurring. And they manage all the hardware and software tools, too.
Companies typically pay a monthly fee for such services.
Services vendor builds a virtual private network or provides a firewall to secure the privacy of data communications between sites. These services also might include virus, vandal and Web site blocking services that filter data and control Web site access. The vendor maintains the data files for viral signatures, hostile IP addresses or offending URLs. The service provider builds and maintains a secure environment for the organization. There are providers offering this using the managed service provider model.