# GreyNoise Block

GreyNoise Block is a Threat Intel Platforms product by GreyNoise, Inc. It runs in the cloud. Pricing is commercial.

Real-time threat intel platform detecting malicious scanning & exploitation

Checked October 2026.

## What is GreyNoise Block?

GreyNoise Block is a threat intelligence platform that detects attacks on network edge systems by identifying malicious scanning and exploitation activity in real-time. The platform operates a global deception network (honeypots) to collect and analyze internet-wide scanning behavior.

The service provides verifiable intelligence on threat actors targeting edge infrastructure including VPNs, firewalls, and other perimeter systems. GreyNoise tracks exploitation attempts for known vulnerabilities (CVEs) and monitors credential-based attacks against enterprise authentication systems.

The platform offers configurable blocklists that can be generated from custom queries and integrated into firewalls, SOAR platforms, and other security enforcement points. Users can search and analyze IP addresses to determine if they are associated with malicious activity, benign scanning, or legitimate services.

GreyNoise maintains a database of internet scanning activity and provides context on IP behavior patterns, including automated scanners, vulnerability exploitation campaigns, and coordinated attack infrastructure. The platform tracks emerging threats and publishes research on active exploitation campaigns, attack patterns, and threat actor infrastructure.

The service includes a web-based visualization interface for searching and analyzing threat data, with API access for programmatic integration into security workflows.

Tags: Attack Detection, IP Lookup, Vulnerability Exploitation, Cyber Threat Intelligence

## Where it fits in your security program (NIST CSF 2.0)

- [Identify](https://cybersectools.com/guides/building-identify-program-small-team): helps you know your assets and your risks.
- [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity.

## Quick facts

- Category: [Threat Intelligence](https://cybersectools.com/categories/threat-intelligence) · [Threat Intel Platforms](https://cybersectools.com/categories/tip)
- Vendor: [GreyNoise, Inc.](https://cybersectools.com/companies/greynoise-inc)
- Deployment: Cloud
- Company size fit: SMB, Mid-Market, Enterprise
- Pricing: From $9,999 per year
- Features: 10 listed
- Integrations: 2 listed
- Website: greynoise.io

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

GreyNoise Block is not a pick on the current [Best Threat Intelligence Platform Solutions for Business](https://cybersectools.com/shortlists/best-threat-intelligence-platforms).

## GreyNoise Block FAQ

### What is GreyNoise Block?

GreyNoise Block is a product by GreyNoise, Inc. in the Threat Intel Platforms category. It covers Attack Detection, IP Lookup and Vulnerability Exploitation.

### What is the pricing for GreyNoise Block?

GreyNoise Block is a commercial product. For pricing, visit https://www.greynoise.io/ or contact GreyNoise, Inc..

### What are alternatives to GreyNoise Block?

Alternatives to GreyNoise Block listed on CybersecTools:

1. [Hudson Rock Cybercrime Intelligence Tools](https://cybersectools.com/tools/hudson-rock-cybercrime-intelligence-tools) - Cybercrime intelligence tools for searching compromised credentials from infostealers (Free)
2. [Cypho](https://cybersectools.com/tools/cypho) - Continuous threat intelligence and exposure management across dark, deep & clear web. (Commercial)
3. [Redinent Threat Intelligence](https://cybersectools.com/tools/redinent-threat-intelligence) - Real-time IoT/OT threat intelligence platform for attack surface & CTI. (Commercial)
4. [Ravenloop Cyber Intelligence Platform](https://cybersectools.com/tools/ravenloop-cyber-intelligence-platform) - Vendor of cyber intelligence products for threat detection, prediction, and response (Commercial)
5. [SecurityTrails API](https://cybersectools.com/tools/securitytrails) - API platform providing historical DNS, WHOIS, and IP data for security research. (Commercial)

Compare all GreyNoise Block alternatives at [https://cybersectools.com/alternatives/greynoise-block](https://cybersectools.com/alternatives/greynoise-block)

### What deployment and organization size does GreyNoise Block fit?

GreyNoise Block is available as a cloud service. It is listed for small businesses, mid-market companies and enterprises. Pricing is commercial. Ask GreyNoise, Inc. for pricing and support terms.

## Compare GreyNoise Block with similar solutions

- [GreyNoise Block vs Hudson Rock Cybercrime Intelligence Tools](https://cybersectools.com/compare/greynoise-block-vs-hudson-rock-cybercrime-intelligence-tools)
- [GreyNoise Block vs Cypho](https://cybersectools.com/compare/cypho-vs-greynoise-block)
- [GreyNoise Block vs Redinent Threat Intelligence](https://cybersectools.com/compare/greynoise-block-vs-redinent-threat-intelligence)

All alternatives to GreyNoise Block: [/alternatives/greynoise-block](https://cybersectools.com/alternatives/greynoise-block)

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Source: https://cybersectools.com/tools/greynoise-block

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More on GreyNoise Block and GreyNoise, Inc.: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md