NTT Security, formerly known as Solutionary, is a part of the NTT Group, which provides comprehensive cybersecurity solutions and services to help businesses protect their critical assets and data. They offer a range of managed security services, including threat detection, incident response, and managed SIEM, as well as consulting services for risk assessment and compliance. NTT Security aims to enhance the security posture of its clients through state-of-the-art technology and expert analysis.