ArcaneDoor espionage campaign targets perimeter network devices (blog.talosintelligence.com)

• State-sponsored group targets network perimeter devices.
• Campaign aims for persistent access to critical networks.
• Mitigation includes patching and monitoring.

"A new state-sponsored espionage campaign named ArcaneDoor has been discovered targeting perimeter network devices such as firewalls and VPN concentrators. The campaign is believed to be conducted by an advanced persistent threat group. It focuses on compromising network infrastructure to gain persistent access to targeted networks, posing a direct threat to critical infrastructure security."