# Cyfirma DeCYFIR vs GreyNoise Block: side-by-side comparison (2026)

[Cyfirma DeCYFIR](https://cybersectools.com/tools/cyfirma-decyfir) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [Cyfirma](https://cybersectools.com/companies/cyfirma). [GreyNoise Block](https://cybersectools.com/tools/greynoise-block) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [GreyNoise, Inc](https://cybersectools.com/companies/greynoise-inc). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Threat Intelligence Platform Solutions for Business](https://cybersectools.com/shortlists/best-threat-intelligence-platforms) picks Recorded Future Threat Intelligence, Google Threat Intelligence, CrowdStrike Falcon Adversary Intelligence and 4 more.

## Side-by-side comparison

| | Cyfirma DeCYFIR | GreyNoise Block |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Threat Intel Platforms | Threat Intel Platforms |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Cyfirma | GreyNoise, Inc. |
| Headquarters | – | – |

### Use cases and capabilities

| | Cyfirma DeCYFIR | GreyNoise Block |
|---|---|---|
| Digital Risk Protection | Yes | – |
| Vulnerability Intelligence | Yes | – |
| Cyber Threat Intelligence | Yes | Yes |
| Attack Detection | – | Yes |
| IP Lookup | – | Yes |
| Vulnerability Exploitation | – | Yes |

### Core features

**Cyfirma DeCYFIR**

10 features listed. Sign in on the page to see them.

**GreyNoise Block**

10 features listed. Sign in on the page to see them.

### Integrations

**Cyfirma DeCYFIR**

3 integrations listed. Sign in on the page to see them.

**GreyNoise Block**

2 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [GreyNoise Block](https://cybersectools.com/tools/greynoise-block) fits if you are a small business.

## Cyfirma DeCYFIR vs GreyNoise Block FAQ

Common questions when comparing Cyfirma DeCYFIR vs GreyNoise Block for threat intel platforms.

### What is the difference between Cyfirma DeCYFIR and GreyNoise Block?

**Cyfirma DeCYFIR**: External threat landscape mgmt platform with predictive intelligence. Built by Cyfirma.

**GreyNoise Block**: Real-time threat intel platform detecting malicious scanning & exploitation. Built by GreyNoise, Inc.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Cyfirma DeCYFIR and GreyNoise Block?

**Cyfirma DeCYFIR** is made by Cyfirma. **GreyNoise Block** is made by GreyNoise, Inc. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cyfirma DeCYFIR a good alternative to GreyNoise Block?

Often, yes. Cyfirma DeCYFIR and GreyNoise Block are both Threat Intel Platforms products, and both cover Cyber Threat Intelligence. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Cyfirma DeCYFIR vs Cypho](https://cybersectools.com/compare/cyfirma-decyfir-vs-cypho)
- [Cyfirma DeCYFIR vs S2W QUAXAR](https://cybersectools.com/compare/cyfirma-decyfir-vs-s2w-quaxar)
- [Cyfirma DeCYFIR vs Redinent Threat Intelligence](https://cybersectools.com/compare/cyfirma-decyfir-vs-redinent-threat-intelligence)
- [GreyNoise Block vs Cypho](https://cybersectools.com/compare/cypho-vs-greynoise-block)
- [GreyNoise Block vs S2W QUAXAR](https://cybersectools.com/compare/greynoise-block-vs-s2w-quaxar)
- [GreyNoise Block vs Redinent Threat Intelligence](https://cybersectools.com/compare/greynoise-block-vs-redinent-threat-intelligence)

## Alternatives to each

- [See all Cyfirma DeCYFIR alternatives](https://cybersectools.com/alternatives/cyfirma-decyfir)
- [See all GreyNoise Block alternatives](https://cybersectools.com/alternatives/greynoise-block)

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Source: https://cybersectools.com/compare/cyfirma-decyfir-vs-greynoise-block

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cyfirma-decyfir.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Cyfirma DeCYFIR and GreyNoise Block: 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=compare-md