# A Security vs RedELK: side-by-side comparison (2026)

[A Security](https://cybersectools.com/tools/a-security) is a commercial [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution by [A Security](https://cybersectools.com/companies/asecurity). [RedELK](https://cybersectools.com/tools/redelk) 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

| | A Security | RedELK |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Red-Team & Adversary Emulation | Red-Team & Adversary Emulation |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | – | 2,625 |
| Last commit | – | Nov 2025 |
| Company | A Security | – |
| Headquarters | – | – |

### Use cases and capabilities

| | A Security | RedELK |
|---|---|---|
| Attack Paths | Yes | – |
| Continuous Testing | Yes | – |
| Red Team | Yes | Yes |
| Vulnerability Exploitation | Yes | – |
| AI Pentesting | Yes | – |
| MITRE ATT&CK | Yes | – |
| Exploit Development | Yes | – |
| Security Validation | Yes | – |
| Penetration Testing Framework | Yes | – |
| Lateral Movement | Yes | – |
| Blue Team | – | Yes |
| Alerting | – | Yes |

### Core features

**A Security**

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

**RedELK**

No features listed.

### Integrations

**A Security**

1 integration listed. Sign in on the page to see them.

**RedELK**

No integrations listed.

## Which one fits you

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

- [A Security](https://cybersectools.com/tools/a-security) fits if you want a cloud product.
- [RedELK](https://cybersectools.com/tools/redelk) fits if you need to run it on your own servers, you need a free product and you want an open-source product.

## A Security vs RedELK FAQ

Common questions when comparing A Security vs RedELK for red-team & adversary emulation.

### What is the difference between A Security and RedELK?

**A Security**: Autonomous offensive security platform that finds, validates, and remediates attack paths. Built by A Security.

**RedELK**: RedELK is a SIEM tool designed for red teams to monitor and receive alerts about blue team detection activities during penetration testing engagements.

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

### Who makes A Security and RedELK?

**A Security** is made by A Security. **RedELK** is open-source with 2,625 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is A Security a good alternative to RedELK?

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

## Related comparisons

- [A Security vs Crimson7 Offensive Engineering](https://cybersectools.com/compare/a-security-vs-crimson7-offensive-engineering)
- [A Security vs Red Specter Cheatsheet](https://cybersectools.com/compare/a-security-vs-red-specter-cheatsheet)
- [A Security vs KinoSec Hades](https://cybersectools.com/compare/a-security-vs-kinosec-hades)
- [RedELK vs Crimson7 Offensive Engineering](https://cybersectools.com/compare/crimson7-offensive-engineering-vs-redelk)
- [RedELK vs Red Specter Cheatsheet](https://cybersectools.com/compare/red-specter-cheatsheet-vs-redelk)
- [RedELK vs KinoSec Hades](https://cybersectools.com/compare/kinosec-hades-vs-redelk)

## Alternatives to each

- [See all A Security alternatives](https://cybersectools.com/alternatives/a-security)
- [See all RedELK alternatives](https://cybersectools.com/alternatives/redelk)

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Source: https://cybersectools.com/compare/a-security-vs-redelk

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

More on A Security and RedELK: 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