Viettel Cyber Security (VCS) is a member of the Viettel Group that develops and delivers cybersecurity solutions for governments, large corporations, and SMEs. The company operates with 100% in-house development capabilities and maintains a team of over 500 employees serving more than 200 enterprise customers across 15 countries. VCS offers over 20 products and services covering various aspects of cybersecurity. The company's research team has identified and reported over 400 zero-day vulnerabilities across critical platforms and systems from vendors including Microsoft, Google, Cisco, Oracle, VMware, Dell, HP, NVIDIA, Canon, Sony, and others. This vulnerability research demonstrates the company's technical capabilities in security analysis. Founded in 2011 as an Information Security Division under Viettel Group, VCS evolved through several organizational changes, becoming Viettel Cyber Security Center in 2014 and establishing itself as a separate branch in 2018. The company protects digital infrastructures for national governments, financial institutions, telecommunications providers, and other organizations across Asia and internationally. VCS serves both domestic Vietnamese customers and international clients, with partnerships spanning multiple countries. The company focuses on protecting critical infrastructure and conducting security research to develop solutions against sophisticated cyber threats. Their approach combines vulnerability research, product development, and security services to address cybersecurity challenges across different sectors and organization sizes.