S&J Corporation is a Japan-based cybersecurity company focused on preventing security incidents and helping organizations operate with greater confidence. Drawing on experience in security advisory, strategy development, security operations, and incident response, the company provides services tailored to clients’ needs and aims to remain a long-term partner as their businesses grow.

Its offerings cover six main areas: security monitoring, security measures, security assessments, education and training, consulting, and incident response. Monitoring services include outsourced SOC operations, CSIRT-Pro, and monitoring for Active Directory, Microsoft 365, and other environments. Security assessments include web application, API, mobile app, platform, and cloud configuration diagnostics, as well as attack surface management. S&J also supports security planning, evaluations, CSIRT development and operations, employee training, and incident-response exercises. When incidents occur, its services include response support, investigations, and preparation of response documentation.

The company also provides security products and services involving technologies such as CrowdStrike, Microsoft Defender for Endpoint, and Darktrace.