PolarEdge
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Ukrainian Network FDN3 Linked to Massive Brute-Force Campaign Against SSL VPNs and RDP Devices
A Ukraine-based IP network, FDN3, is linked to a broad abusive infrastructure conducting large-scale brute-force and password-spraying campaigns against SSL VPN and RDP devices, with activity spanning June to July 2025 and connections to offshore bulletproof hosting groups.
