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 Do Son October 15, 2025 0 Sekoia Threat Detection & Response (TDR) researchers have published an in-depth technical analysis of the PolarEdge Backdoor,... Read More Read more about Sekoia Exposes PolarEdge Backdoor: Custom mbedTLS C2 Compromising Cisco, QNAP, and Synology Devices