China-Backed Flax Typhoon APT Maintained Year-Long Access by Turning ArcGIS SOE into Web Shell Backdoor Cyber Security China-Backed Flax Typhoon APT Maintained Year-Long Access by Turning ArcGIS SOE into Web Shell Backdoor Ddos October 16, 2025 Read More Read more about China-Backed Flax Typhoon APT Maintained Year-Long Access by Turning ArcGIS SOE into Web Shell Backdoor