GreyNoise Intelligence review

GreyNoise Intelligence collects information about malicious internet traffic seen by its global sensor grid. The aim is to help security teams distinguish activity associated with emerging exploitation, compromised edge devices and other threats from background internet scanning, then investigate alerts with more context.

Its tools cover several stages of that work: early warnings about vulnerability activity, configurable blocklists for edge controls, and compromise detection for devices scanning GreyNoise sensors or contacting known command-and-control infrastructure. GreyNoise also adds intent, CVE and tooling context to alerts and provides network activity data for threat hunting.

The product is aimed at government, enterprise and small and midsized business customers. Its plans range from a free option for individuals exploring GreyNoise data to paid tiers for teams that need more searches, alerts, blocklists, data freshness or historical recall. Paid prices are not published on the vendor's site.

GreyNoise’s clearest value is adding context to suspicious edge traffic. Instead of treating every scan or alert as equally meaningful, teams can use observed network activity and intent, CVE and tooling details to investigate what may be happening. The feature set also connects that context to action through configurable blocklists and compromise detection.

The plan details suggest room to scale beyond basic lookups. According to the listed plan information:

• Standard includes unlimited searches and users, 10-day recall, 10 alerts and 3 blocklists, plus Enterprise and GNQL API access and integrations.
• Advanced extends recall to 30 days and lists 25 alerts, feeds, 10 blocklists and an 8-hour SLA.
• Elite lists 90-day recall, unlimited alerts and blocklists, and a 4-hour SLA.

That makes the tier differences fairly concrete even though the prices are not. The free plan also gives individuals a way to explore the data, with Community API access. A full-feature trial is available on request, according to the published pricing details.

The free tier has meaningful caps: up to 50 searches per week, data freshness every 8 hours, 10-day recall, 3 alerts and 1 blocklist. That may be enough to explore GreyNoise data, but teams needing frequent updates, more alert capacity or several blocklists will hit limits quickly.

The paid tiers raise those limits, but their monthly and annual prices are not published; the pricing notes say to contact sales. That makes it hard to compare total cost before starting a sales conversation. The listed tier details also vary by plan: Standard has 10-day recall, Advanced 30 days and Elite 90 days. Business Services have slower listed data freshness than other coverage on Standard and Elite.

There is another cost unknown: at least one core module—Triage, Investigate or Hunt—is required, while module pricing is not published. Optional C2 Detection, Vulnerability Prioritization and Business Services modules also have no published prices. The published pricing information is marked low confidence, so confirm current limits and terms with GreyNoise before budgeting.

GreyNoise’s Free plan costs $0 per month. The pricing notes list paid-plan prices as not published and say to contact sales, so we can’t calculate the jump in dollars from Free to Standard, Advanced, or Elite. The listed differences are in limits: Free allows 50 searches a week, three alerts, one blocklist, eight-hour data freshness, and 10-day recall. Standard raises searches and users to unlimited, with 10 alerts, three blocklists, and four-hour freshness. Advanced adds 30-day recall, 25 alerts, feeds, and 10 blocklists. Elite lists unlimited alerts and blocklists, hourly freshness, and 90-day recall.

There’s a pricing catch: at least one paid core module—Triage, Investigate, or Hunt—is required, and module prices are also not published. Optional C2 Detection, Vulnerability Prioritization, and Business Services have no published prices either. Monthly and annual paid rates are unavailable; a full-feature trial is available on request. These details were checked November 7, 2026, with low confidence.

Plan the switch around the work GreyNoise is meant to support: threat-alert triage, investigation, threat hunting, and edge blocklists. Before replacing another tool, identify which of those workflows depend on its context or lists, then confirm how your team would recreate them in GreyNoise. The published pricing details list integrations on paid plans, but don’t name them or explain migration steps.

We also don’t have published material here on data export, import, retention after cancellation, or migration assistance. Ask GreyNoise about those points before signing, especially if you need to preserve investigation history or move blocklists. Paid pricing and module costs are not published, so confirm the full cost of the workflows you need.

We can’t substantiate reasons people leave from Reddit: no Reddit posts or comments were supplied. Buyers should weigh the known trade-offs instead: paid costs are undisclosed, and the Free plan caps searches, alerts, blocklists, freshness, and recall.