Naver Cloud said on Wednesday it won the top “excellent” grade in the 2025 comprehensive information security assessment of key private-sector ICT infrastructure conducted by the Ministry of Science and ICT and the Korea Internet & Security Agency (KISA), and received a commendation from the science minister.

The assessment covered Naver data centre “Gak Chuncheon.” It received the top grade in its first assessment since being designated a key ICT infrastructure facility. The result placed it in the top 10 percent of the information and communications sector among 101 managing bodies.

The comprehensive information security assessment is a system to check information security levels at key private-sector ICT infrastructure facilities. It evaluates four areas: vulnerability management (30 points), security checks (30 points), evaluation of information security tasks (30 points) and simulated penetration training evaluation (10 points). Naver Cloud received strong evaluations across all areas and won the top grade.

Naver Cloud operates a security framework including ongoing vulnerability analysis and improvement, security checks reflecting the latest threat trends, implementation of information security tasks and simulated penetration training. It is also working with the government and related institutions to strengthen security for the national digital infrastructure.

In April, it took part in Locked Shields 2026, an international cyberattack and defence exercise hosted by the NATO Cooperative Cyber Defence Centre of Excellence. More recently, it received a commendation from the prime minister for its work operating prevention and response systems for security incidents affecting AI and cloud infrastructure.

Kim Jae-dong (김재동), Naver Cloud’s chief information security officer, said the assessment recognised the company’s continued investment in information protection and efforts to advance its security framework. He said it would continue to provide a stable cloud environment based on its security capabilities and contribute to improving the safety of the national digital infrastructure through public-private cooperation.