Lincoln-based Lighthouse Security Group, a provider of information technology security systems, has introduced a software-as-a-service platform that provides corporate identity and access management using IBM software, eliminating the expenses associated with purchasing, deploying and maintaining an in-house security infrastructure. Lighthouse technologies provide clients with security without the specialized engineering typically required. The company estimates that its systems will save 30 percent to 60 percent over the first three years of operation compared with full ownership.