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

Detect time	2025-08-19 11:24:55
Detect client IP	216.73.216.21
Detect URL	https://yfl.yonsei.ac.kr/yfl/index.do?search_value=텔레@hodongseo#a페이스북광고개인돈광고문의페이스북광고개인돈광고문의