Sekoia Exposes PolarEdge Backdoor: Custom mbedTLS C2 Compromising Cisco, QNAP, and Synology Devices Malware Sekoia Exposes PolarEdge Backdoor: Custom mbedTLS C2 Compromising Cisco, QNAP, and Synology Devices Ddos October 15, 2025 Read More Read more about Sekoia Exposes PolarEdge Backdoor: Custom mbedTLS C2 Compromising Cisco, QNAP, and Synology Devices