OpenCTI is described as 'Collect, correlate and leverage. Organize your cyber threat intelligence to enhance and disseminate actionable insights' and is an app in the security & privacy category. There are three alternatives to OpenCTI for Web-based, Google Chrome and Linux. The best OpenCTI alternative is OSINT-tool. It's not free, so if you're looking for a free alternative, you could try ThreatCluster or MISP.
OSINT tool is a browser extension and web application built for researchers, investigators, journalists and intelligence analysts. Our extension gives you access to a suite of OSINT utilities directly on any webpage you visit.
Free threat intelligence platform that aggregates 4000+ cybersecurity sources, clusters related articles, and delivers daily digests on APTs, ransomware, CVEs, and emerging threats.
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