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

Detect time	2025-05-14 07:38:09
Detect client IP	10.152.1.112 (x-forward-for : 3.129.253.54 )
Detect URL	http://www.ithome.kr/itbankcyber/course/itcourses/images/img_main01_sub.png