# Fidelis Security vs Total Defense Internet Security: side-by-side comparison (2026)

[Fidelis Security](https://cybersectools.com/tools/fidelis-security) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [Fidelis Security](https://cybersectools.com/companies/fidelis-security). [Total Defense Internet Security](https://cybersectools.com/tools/total-defense-internet-security) is a commercial [endpoint protection platform](https://cybersectools.com/categories/epp) solution by [Total Defense](https://cybersectools.com/companies/total-defense). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Fidelis Security | Total Defense Internet Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Extended Detection and Response | Endpoint Protection Platform |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Mid-Market, Enterprise | Startup |
| Company | Fidelis Security | Total Defense |
| Headquarters | – | – |

### Use cases and capabilities

| | Fidelis Security | Total Defense Internet Security |
|---|---|---|
| Active Directory | Yes | – |
| MITRE ATT&CK | Yes | – |
| NDR | Yes | – |
| Ransomware Prevention | – | Yes |
| Windows Security | – | Yes |
| macOS | – | Yes |
| Android Security | – | Yes |

### Core features

**Fidelis Security**

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

**Total Defense Internet Security**

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

### Integrations

**Fidelis Security**

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

**Total Defense Internet Security**

No integrations listed.

## Which one fits you

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

- [Fidelis Security](https://cybersectools.com/tools/fidelis-security) fits if you need both cloud and on-premises options and you are a mid-market company or an enterprise.
- [Total Defense Internet Security](https://cybersectools.com/tools/total-defense-internet-security) fits if you want a cloud product and you are a startup.

## Fidelis Security vs Total Defense Internet Security FAQ

Common questions when comparing Fidelis Security vs Total Defense Internet Security for extended detection and response.

### What is the difference between Fidelis Security and Total Defense Internet Security?

**Fidelis Security**: XDR platform with NDR, EDR, deception, AD security, and CNAPP capabilities. Built by Fidelis Security.

**Total Defense Internet Security**: Consumer antivirus & internet security suite for PCs, Macs, and mobiles. Built by Total Defense.

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

### Who makes Fidelis Security and Total Defense Internet Security?

**Fidelis Security** is made by Fidelis Security. **Total Defense Internet Security** is made by Total Defense. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Fidelis Security a good alternative to Total Defense Internet Security?

In part. Fidelis Security and Total Defense Internet Security are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Fidelis Security vs Kaspersky Next XDR Optimum](https://cybersectools.com/compare/fidelis-security-vs-kaspersky-next-xdr-optimum)
- [Fidelis Security vs HackerHub8 Martinet](https://cybersectools.com/compare/fidelis-security-vs-hackerhub8-martinet)
- [Fidelis Security vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-fidelis-security)
- [Total Defense Internet Security vs Kaspersky Next XDR Optimum](https://cybersectools.com/compare/kaspersky-next-xdr-optimum-vs-total-defense-internet-security)
- [Total Defense Internet Security vs HackerHub8 Martinet](https://cybersectools.com/compare/hackerhub8-martinet-vs-total-defense-internet-security)
- [Total Defense Internet Security vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-total-defense-internet-security)

## Alternatives to each

- [See all Fidelis Security alternatives](https://cybersectools.com/alternatives/fidelis-security)
- [See all Total Defense Internet Security alternatives](https://cybersectools.com/alternatives/total-defense-internet-security)

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Source: https://cybersectools.com/compare/fidelis-security-vs-total-defense-internet-security

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More on Fidelis Security and Total Defense Internet Security: 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