# Core Security Outflank Security Tooling vs external_c2 framework: side-by-side comparison (2026)

[Core Security Outflank Security Tooling](https://cybersectools.com/tools/core-security-outflank-security-tooling) is a commercial [Red-Team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution by [Core Security](https://cybersectools.com/companies/core-security). [external_c2 framework](https://cybersectools.com/tools/externalc2-framework) is a free [Red-Team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Core Security Outflank Security Tooling | external_c2 framework |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Red-Team & Adversary Emulation | Red-Team & Adversary Emulation |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | Mid-Market, Enterprise | Enterprise |
| GitHub stars | – | 241 |
| Last commit | – | Jun 2022 |
| Company | Core Security | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Core Security Outflank Security Tooling | external_c2 framework |
|---|---|---|
| Red Team | Yes | Yes |
| Evasion | Yes | – |
| C2 | Yes | Yes |
| Lateral Movement | Yes | – |
| Payload Generation | Yes | – |
| Post Exploitation | Yes | – |
| Exploitation Framework | – | Yes |

### Core features

**Core Security Outflank Security Tooling**

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

**external_c2 framework**

No features listed.

### Integrations

**Core Security Outflank Security Tooling**

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

**external_c2 framework**

No integrations listed.

## Which one fits you

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

- [Core Security Outflank Security Tooling](https://cybersectools.com/tools/core-security-outflank-security-tooling) fits if you are a mid-market company.
- [external_c2 framework](https://cybersectools.com/tools/externalc2-framework) fits if you need a free product and you want an open-source product.

## Core Security Outflank Security Tooling vs external_c2 framework FAQ

Common questions when comparing Core Security Outflank Security Tooling vs external_c2 framework for Red-Team & adversary emulation.

### What is the difference between Core Security Outflank Security Tooling and external_c2 framework?

**Core Security Outflank Security Tooling**: Red team toolkit for EDR evasion, initial access, and post-exploitation, built by Core Security.

**external_c2 framework**: A Python framework for building custom Command and Control interfaces that implements Cobalt Strike's External C2 specification for data transfer between frameworks.

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

### Who makes Core Security Outflank Security Tooling and external_c2 framework?

**Core Security Outflank Security Tooling** is made by Core Security. **external_c2 framework** is open-source with 241 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Core Security Outflank Security Tooling a good alternative to external_c2 framework?

Often, yes. Core Security Outflank Security Tooling and external_c2 framework are both Red-Team & Adversary Emulation products, and both cover C2, Red Team. Key differences: Core Security Outflank Security Tooling is Commercial while external_c2 framework is Free, external_c2 framework is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Core Security Outflank Security Tooling vs Fortra Cobalt Strike](https://cybersectools.com/compare/core-security-outflank-security-tooling-vs-fortra-cobalt-strike)
- [Core Security Outflank Security Tooling vs Core Security Cobalt Strike](https://cybersectools.com/compare/core-security-cobalt-strike-vs-core-security-outflank-security-tooling)
- [Core Security Outflank Security Tooling vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-core-security-outflank-security-tooling)
- [external_c2 framework vs Fortra Cobalt Strike](https://cybersectools.com/compare/externalc2-framework-vs-fortra-cobalt-strike)
- [external_c2 framework vs Core Security Cobalt Strike](https://cybersectools.com/compare/core-security-cobalt-strike-vs-externalc2-framework)
- [external_c2 framework vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-externalc2-framework)

## Alternatives to each

- [See all Core Security Outflank Security Tooling alternatives](https://cybersectools.com/alternatives/core-security-outflank-security-tooling)
- [See all external_c2 framework alternatives](https://cybersectools.com/alternatives/externalc2-framework)

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Source: https://cybersectools.com/compare/core-security-outflank-security-tooling-vs-externalc2-framework

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More on Core Security Outflank Security Tooling and external_c2 framework: 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