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Mistborn aggregates threat intelligence from multiple sources to enrich, normalize, and distribute IOCs for security analysis and incident response workflows.
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The self-hosted GreyNoise alternative
GreyNoise collects and analyzes internet-wide scanning and automated bot activity to produce IP reputation and contextual metadata, enabling security teams and detection platforms to filter background noise, triage alerts, and prioritize genuine threats.
Alternatives to GreyNoise
What replacing GreyNoise actually involves
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. In exchange you take on hosting, backups and updates yourself.
Browse everything in Threat Detection, SIEM & Incident Response.
