CHT Security is the subsidiary of Chunghwa Telecom Group, the top telco and one of the most trustworthy ICT companies in Taiwan. CHT Security is ISO 27001, ISO 27701, ISO 20000, ISO 17025 and IEC 62443 CBTL certified and is awarded 2023 Taiwan Cybersecurity Services Company of the Year Award by Frost & Sullivan, Infosec Quality Award & Infosec Excellence Award by BSI. In the government's annual review, CHT Security is the only company that achieved the top rating for consecutive years.

The comprehensive services of CHT Security include network and endpoint security services (intrusion protection, DDoS protection, etc.), professional services (SOC, vulnerability assessment, penetration testing, digital forensics, red teaming, IoT and OT testing, consulting), identification products, and total solutions planning, etc.