OpenCTI by Filigran vs. GreyNoise

OpenCTI is an open-source threat intelligence platform designed to help users manage and operationalize threat intelligence effectively. Built by practitioners for practitioners, OpenCTI aims to break down data silos and ensure that threat intelligence is not only accessible but also actionable. This platform facilitates the seamless flow of threat intelligence across various security systems, making it relevant by integrating business context and enabling the creation of comprehensive threat exposure reports for enhanced executive visibility.

GreyNoise provides security teams with real-time, verifiable perimeter threat intelligence. We observe and analyze both global and targeted internet scanning and exploitation traffic, and make this intelligence available to customers in real-time. This allows security teams to improve the efficiency of their SOC, perform threat hunting campaigns, and focus on critical threats to their network.