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

Detect time	2025-06-02 07:02:04
Detect client IP	10.152.1.13 (x-forward-for : 18.116.42.43 )
Detect URL	http://www.nbac.co.kr/itbankcyber/course/itcourses/images/cont01_table02.png