In 2024, the number of Distributed Denial-of-Service (DDoS) shelter service users in South Korea reached about *. Over the years, DDoS shelter service users in South Korea have increased. The DDoS shelter service is provided by the Korean Internet & Security Agency (KISA) to mitigate DDoS attacks for small and medium-sized companies' websites.
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Korean Internet & Security Agency. (June 16, 2025). Number of DDoS shelter service users in South Korea from 2015 to 2024 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1308269/south-korea-ddos-shelter-service-users/
Korean Internet & Security Agency. "Number of DDoS shelter service users in South Korea from 2015 to 2024." Chart. June 16, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1308269/south-korea-ddos-shelter-service-users/
Korean Internet & Security Agency. (2025). Number of DDoS shelter service users in South Korea from 2015 to 2024. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1308269/south-korea-ddos-shelter-service-users/
Korean Internet & Security Agency. "Number of Ddos Shelter Service Users in South Korea from 2015 to 2024." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 16 Jun 2025, /statistics/1308269/south-korea-ddos-shelter-service-users/
Korean Internet & Security Agency, Number of DDoS shelter service users in South Korea from 2015 to 2024 ÌÇÐÄÆƽâ°æ, /statistics/1308269/south-korea-ddos-shelter-service-users/ (last visited July 24, 2026)
Number of DDoS shelter service users in South Korea from 2015 to 2024 [Graph], Korean Internet & Security Agency, June 16, 2025. [Online]. Available: /statistics/1308269/south-korea-ddos-shelter-service-users/
