# Bold Endpoint Security vs Nightfall Nyx: side-by-side comparison (2026)

[Bold Endpoint Security](https://cybersectools.com/tools/bold-endpoint-security) is a commercial [data loss prevention](https://cybersectools.com/categories/dlp) solution by [Bold Security](https://cybersectools.com/companies/bold-security). [Nightfall Nyx](https://cybersectools.com/tools/nightfall-nyx) is a commercial [data loss prevention](https://cybersectools.com/categories/dlp) solution by [Nightfall AI](https://cybersectools.com/companies/nightfall-ai). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Bold Endpoint Security | Nightfall Nyx |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Data Loss Prevention | Data Loss Prevention |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Bold Security | Nightfall AI |
| Headquarters | – | – |

### Use cases and capabilities

| | Bold Endpoint Security | Nightfall Nyx |
|---|---|---|
| AI DLP | Yes | – |
| Data Exfiltration | Yes | Yes |
| Shadow AI | Yes | – |
| Agentic AI Security | Yes | – |
| GenAI Security | Yes | – |
| Anomaly Detection | Yes | – |
| Investigation | Yes | – |
| Sensitive Data | Yes | – |

### Core features

**Bold Endpoint Security**

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

**Nightfall Nyx**

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

### Integrations

**Bold Endpoint Security**

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

**Nightfall Nyx**

12 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.

- [Bold Endpoint Security](https://cybersectools.com/tools/bold-endpoint-security) fits if you need to run it on your own servers.
- [Nightfall Nyx](https://cybersectools.com/tools/nightfall-nyx) fits if you want a cloud product.

## Bold Endpoint Security vs Nightfall Nyx FAQ

Common questions when comparing Bold Endpoint Security vs Nightfall Nyx for data loss prevention.

### What is the difference between Bold Endpoint Security and Nightfall Nyx?

**Bold Endpoint Security**: AI-based on-device endpoint agent for DLP, insider threat, and AI security. Built by Bold Security.

**Nightfall Nyx**: AI-powered DLP analyst that investigates incidents and reduces data exposure risk. Built by Nightfall AI.

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

### Who makes Bold Endpoint Security and Nightfall Nyx?

**Bold Endpoint Security** is made by Bold Security. **Nightfall Nyx** is made by Nightfall AI. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Bold Endpoint Security a good alternative to Nightfall Nyx?

Often, yes. Bold Endpoint Security and Nightfall Nyx 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

- [Bold Endpoint Security vs Jazz](https://cybersectools.com/compare/bold-endpoint-security-vs-jazz-security)
- [Bold Endpoint Security vs Kitecyber Data Security Platform](https://cybersectools.com/compare/bold-endpoint-security-vs-kitecyber-data-shield-device-shield-app-shield)
- [Bold Endpoint Security vs Rockfort Orion](https://cybersectools.com/compare/bold-endpoint-security-vs-rockfort-orion)
- [Nightfall Nyx vs Jazz](https://cybersectools.com/compare/jazz-security-vs-nightfall-nyx)
- [Nightfall Nyx vs Kitecyber Data Security Platform](https://cybersectools.com/compare/kitecyber-data-shield-device-shield-app-shield-vs-nightfall-nyx)
- [Nightfall Nyx vs Rockfort Orion](https://cybersectools.com/compare/nightfall-nyx-vs-rockfort-orion)

## Alternatives to each

- [See all Bold Endpoint Security alternatives](https://cybersectools.com/alternatives/bold-endpoint-security)
- [See all Nightfall Nyx alternatives](https://cybersectools.com/alternatives/nightfall-nyx)

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Source: https://cybersectools.com/compare/bold-endpoint-security-vs-nightfall-nyx

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

More on Bold Endpoint Security and Nightfall Nyx: 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