The request / response that are contrary to the Web firewall security policies have been blocked.

Detect time	2025-05-14 18:31:51
Detect client IP	10.152.1.207 (x-forward-for : 3.12.163.164 )
Detect URL	http://kg.xn--oi3bn8n9wbpwp77c.kr/data/course/20056_main_thumbnail_pc