S2W is a South Korean cybersecurity and data intelligence company that develops AI-powered platforms for threat analysis and data operations. The company specializes in collecting and analyzing data from multiple domains including the dark web, surface web, and other online sources to provide security intelligence services.

The company's product portfolio includes QUAXAR, a cyber threat intelligence (CTI) platform for enterprises and institutions; XARVIS, a security big data platform designed for government and public agencies; EYEZ, a virtual asset (cryptocurrency) analysis solution; and SAIP, a domain-specific ontology platform that serves as a generative AI system for enterprise knowledge management. S2W also offers SAIP Lite, a lightweight generative AI platform for corporate use.

S2W employs multi-domain cross-analysis technology combined with domain-specific language models to process both structured and unstructured data. The company has developed specialized AI language models including DarkBERT, trained on dark web data, and CyBERTuned for cybersecurity applications. Their platforms integrate security guardrails to address data leakage and AI reliability concerns.

The company serves government agencies, financial institutions, and enterprises across multiple countries including South Korea, Japan, Singapore, Indonesia, Saudi Arabia, and Greece. S2W is an official partner of INTERPOL and participates in South Korea's National Cyber Security Cooperation Center. The company was selected as one of the World Economic Forum's Technology Pioneers in 2023 and listed on KOSDAQ in 2025.