Home / Standards / YC/T 389-2011 YC/T 389-2011 Abolished 烟草行业信息系统安全等级保护与信息安全事件的定级准则 Standard Type YC ICS N/A CCS N/A Status Abolished Issue Date 2011-03-25 Implementation 2011-04-01 Centralized Committee 国家烟草专卖局 Issuing Authority 国家烟草专卖局