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

Detect time	2025-05-14 04:03:25
Detect client IP	10.152.1.199 (x-forward-for : 52.15.120.29 )
Detect URL	http://itbank.xn--kg-j96is77cveb.kr/data/course/5_main_thumbnail_pc