# CrowdSec Security Stack vs Defensia: side-by-side comparison (2026)

[CrowdSec Security Stack](https://cybersectools.com/tools/crowdsec-security-stack) is a free [intrusion detection and prevention systems](https://cybersectools.com/categories/idps) solution by [CrowdSec](https://cybersectools.com/companies/crowdsec). [Defensia](https://cybersectools.com/tools/defensia) is a free [workload protection](https://cybersectools.com/categories/workload-protection) solution by [Defensia](https://cybersectools.com/companies/defensia). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | CrowdSec Security Stack | Defensia |
|---|---|---|
| Pricing model | Free | Free |
| Category | Intrusion Detection and Prevention Systems | Workload Protection |
| Verified | No | Verified |
| Deployment type | Hybrid | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market |
| Company | CrowdSec | Defensia |
| Headquarters | – | – |

### Use cases and capabilities

| | CrowdSec Security Stack | Defensia |
|---|---|---|
| Open Source | Yes | – |
| Bot Protection | Yes | – |
| WAF | Yes | Yes |
| DDoS | Yes | – |
| Security Validation | – | Yes |
| App Security | – | Yes |
| Security as a Service | – | Yes |
| Network Monitoring | – | Yes |

### Core features

**CrowdSec Security Stack**

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

**Defensia**

- Compliance Reports
- Security Score
- IP Reputation
- Multi-Server Management
- Auto-Remediation
- Geoblocking
- Real-Time Attack Dashboard
- CVE Vulnerability Scanning

### Integrations

**CrowdSec Security Stack**

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

**Defensia**

- Slack
- email
- nginx
- apache
- Discord
- fail2ban
- iptables
- Docker
- Kubernetes
- Helm

## Which one fits you

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

- [CrowdSec Security Stack](https://cybersectools.com/tools/crowdsec-security-stack) fits if you are an enterprise.

## CrowdSec Security Stack vs Defensia FAQ

Common questions when comparing CrowdSec Security Stack vs Defensia for intrusion detection and prevention systems.

### What is the difference between CrowdSec Security Stack and Defensia?

**CrowdSec Security Stack**: Open source crowd-powered IDS/IPS and WAF for infra & app security. Built by CrowdSec.

**Defensia**: Open-source Linux security agent with real-time dashboard: SSH, WAF, and CVE scanning. Built by Defensia. Core capabilities include Compliance Reports, Security Score, IP Reputation.

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

### Who makes CrowdSec Security Stack and Defensia?

**CrowdSec Security Stack** is made by CrowdSec. **Defensia** is made by Defensia founded in 2025-01-01T00:00:00.000Z. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CrowdSec Security Stack a good alternative to Defensia?

In part. CrowdSec Security Stack and Defensia are not in the same category on CybersecTools. Both cover WAF. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CrowdSec Security Stack vs DYNANIC](https://cybersectools.com/compare/crowdsec-security-stack-vs-dynanic)
- [CrowdSec Security Stack vs Akheros](https://cybersectools.com/compare/akheros-vs-crowdsec-security-stack)
- [CrowdSec Security Stack vs Guardian360 Hacker Alert](https://cybersectools.com/compare/crowdsec-security-stack-vs-guardian360-hacker-alert)
- [Defensia vs DYNANIC](https://cybersectools.com/compare/defensia-vs-dynanic)
- [Defensia vs Akheros](https://cybersectools.com/compare/akheros-vs-defensia)
- [Defensia vs Guardian360 Hacker Alert](https://cybersectools.com/compare/defensia-vs-guardian360-hacker-alert)

## Alternatives to each

- [See all CrowdSec Security Stack alternatives](https://cybersectools.com/alternatives/crowdsec-security-stack)
- [See all Defensia alternatives](https://cybersectools.com/alternatives/defensia)

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Source: https://cybersectools.com/compare/crowdsec-security-stack-vs-defensia

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

More on CrowdSec Security Stack and Defensia: 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