# Calamu Data Harbor vs Matters External Data Risk Mgmt: side-by-side comparison (2026)

[Calamu Data Harbor](https://cybersectools.com/tools/calamu-data-harbor) is a commercial [data loss prevention](https://cybersectools.com/categories/dlp) solution by [Calamu](https://cybersectools.com/companies/calamu). [Matters External Data Risk Mgmt](https://cybersectools.com/tools/matters-external-data-risk-mgmt) is a commercial [data loss prevention](https://cybersectools.com/categories/dlp) solution by [Matters](https://cybersectools.com/companies/matters). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Calamu Data Harbor | Matters External Data Risk Mgmt |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Data Loss Prevention | Data Loss Prevention |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Calamu | Matters |
| Headquarters | – | – |

### Use cases and capabilities

| | Calamu Data Harbor | Matters External Data Risk Mgmt |
|---|---|---|
| Ransomware Prevention | Yes | – |
| Data Breach | Yes | – |
| Data Exfiltration | Yes | Yes |
| Encryption | Yes | – |
| Anomaly Detection | Yes | – |
| S3 | Yes | – |
| Ransomware | Yes | – |
| Workload Security | Yes | – |
| Sensitive Data | – | Yes |
| Linux | – | Yes |

### Core features

**Calamu Data Harbor**

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

**Matters External Data Risk Mgmt**

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

### Integrations

**Calamu Data Harbor**

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

**Matters External Data Risk Mgmt**

No integrations listed.

## Calamu Data Harbor vs Matters External Data Risk Mgmt FAQ

Common questions when comparing Calamu Data Harbor vs Matters External Data Risk Mgmt for data loss prevention.

### What is the difference between Calamu Data Harbor and Matters External Data Risk Mgmt?

**Calamu Data Harbor**: Breach-proof data storage platform using fragmentation to prevent data theft. Built by Calamu.

**Matters External Data Risk Mgmt**: Real-time DLP that blocks sensitive data exfiltration via eBPF monitoring. Built by Matters.

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

### Who makes Calamu Data Harbor and Matters External Data Risk Mgmt?

**Calamu Data Harbor** is made by Calamu. **Matters External Data Risk Mgmt** is made by Matters. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Calamu Data Harbor a good alternative to Matters External Data Risk Mgmt?

Often, yes. Calamu Data Harbor and Matters External Data Risk Mgmt are both Data Loss Prevention products, and both cover Data Exfiltration. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Calamu Data Harbor vs Safetica DLP](https://cybersectools.com/compare/calamu-data-harbor-vs-safetica-dlp)
- [Calamu Data Harbor vs Jazz](https://cybersectools.com/compare/calamu-data-harbor-vs-jazz-security)
- [Calamu Data Harbor vs Bold Endpoint Security](https://cybersectools.com/compare/bold-endpoint-security-vs-calamu-data-harbor)
- [Matters External Data Risk Mgmt vs Safetica DLP](https://cybersectools.com/compare/matters-external-data-risk-mgmt-vs-safetica-dlp)
- [Matters External Data Risk Mgmt vs Jazz](https://cybersectools.com/compare/jazz-security-vs-matters-external-data-risk-mgmt)
- [Matters External Data Risk Mgmt vs Bold Endpoint Security](https://cybersectools.com/compare/bold-endpoint-security-vs-matters-external-data-risk-mgmt)

## Alternatives to each

- [See all Calamu Data Harbor alternatives](https://cybersectools.com/alternatives/calamu-data-harbor)
- [See all Matters External Data Risk Mgmt alternatives](https://cybersectools.com/alternatives/matters-external-data-risk-mgmt)

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Source: https://cybersectools.com/compare/calamu-data-harbor-vs-matters-external-data-risk-mgmt

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More on Calamu Data Harbor and Matters External Data Risk Mgmt: 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