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

Detect time	2025-12-15 09:00:17
Detect client IP	216.73.216.122 (x-forward-for : 10.8.55.53 )
Detect URL	http://www.ygusw.ac.kr/upload/editor/20200710/kakaotalk_20200703_161929742_06.jpg