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

Detect time	2025-05-01 13:44:12
Detect client IP	172.17.18.21 (x-forward-for : 52.15.53.236 )
Detect URL	http://www.kice.re.kr/upload/suneungtnsmd_2017/2017_44.pdf