GreyNoise: 242,666 Unverified Hong Kong Scanning IPs Surge in a Week While UCLOUD (AS135377) Drives Real Multi-Protocol Scanning
Between March 12 and 18, 2026, the GreyNoise Observation Grid (GOG) recorded 242,666 new scanning IPs geolocating to Hong Kong, 48.9% of all new scanning IPs seen that week. 99.7% never completed a TCP handshake, so GreyNoise classes them as "spoofable" (unverified source addresses). They carried no payloads and triggered no signatures. G…