# Security [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [User Guide](Help%20System/GSTARCAD/2018/User%20Guide/(User%20Guide).md) → [What's new in GstarCAD 2018](%28What%27s%20new%20in%20GstarCAD%202018%29.md) ## Security **Command name: SECURITY** Sets the system security monitoring level, and display or delete the current trusted publisher certificate. ![](Help%20System/GSTARCAD/2018/assets/GCAD_GUG/GCAD_GUG/pic/Security%201.jpg) --- Xi'an Gstarsoft Ltd