# Cisco Secure Email Threat Defense vs ID Agent Graphus: side-by-side comparison (2026)

[Cisco Secure Email Threat Defense](https://cybersectools.com/tools/cisco-secure-email-threat-defense) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Cisco](https://cybersectools.com/companies/cisco). [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ID Agent](https://cybersectools.com/companies/id-agent). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Cisco Secure Email Threat Defense](https://cybersectools.com/tools/cisco-secure-email-threat-defense)

Best for: Cisco shops wanting Talos-backed filtering

It is on the list as a Microsoft 365 product that can grow with you: you start in API mode and add the inline gateway later, from the same console. That suits a team that already runs Cisco security. Check fit first if you run Google Workspace or your own mail servers, because the product is built for Microsoft 365.

From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.

## Side-by-side comparison

| | Cisco Secure Email Threat Defense | ID Agent Graphus |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Email Security Platforms | Email Security Platforms |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Cisco | ID Agent |
| Headquarters | – | – |

### Use cases and capabilities

| | Cisco Secure Email Threat Defense | ID Agent Graphus |
|---|---|---|
| Microsoft 365 | Yes | Yes |
| Threat Analysis | Yes | – |
| Ransomware | – | Yes |
| Zero Day | – | Yes |
| Spam Prevention | – | Yes |

### Core features

**Cisco Secure Email Threat Defense**

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

**ID Agent Graphus**

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

### Integrations

**Cisco Secure Email Threat Defense**

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

**ID Agent Graphus**

8 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.

- [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) fits if you are a startup.

## Cisco Secure Email Threat Defense vs ID Agent Graphus FAQ

Common questions when comparing Cisco Secure Email Threat Defense vs ID Agent Graphus for email security platforms.

### What is the difference between Cisco Secure Email Threat Defense and ID Agent Graphus?

**Cisco Secure Email Threat Defense**: Email threat protection for Microsoft 365 with advanced detection capabilities, built by Cisco.

**ID Agent Graphus**: AI-powered anti-phishing platform for Microsoft 365 & Google Workspace, built by ID Agent.

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

### Who makes Cisco Secure Email Threat Defense and ID Agent Graphus?

**Cisco Secure Email Threat Defense** is made by Cisco. **ID Agent Graphus** is made by ID Agent. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cisco Secure Email Threat Defense a good alternative to ID Agent Graphus?

Often, yes. Cisco Secure Email Threat Defense and ID Agent Graphus are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Cisco Secure Email Threat Defense vs Ocean Agentic Email Security Platform](https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-ocean-agentic-email-security-platform)
- [Cisco Secure Email Threat Defense vs SpamTitan for Office 365](https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-spamtitan-for-office-365)
- [Cisco Secure Email Threat Defense vs ESET Cloud Office Security](https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-eset-cloud-office-security)
- [ID Agent Graphus vs Ocean Agentic Email Security Platform](https://cybersectools.com/compare/id-agent-graphus-vs-ocean-agentic-email-security-platform)
- [ID Agent Graphus vs SpamTitan for Office 365](https://cybersectools.com/compare/id-agent-graphus-vs-spamtitan-for-office-365)
- [ID Agent Graphus vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-id-agent-graphus)

## Alternatives to each

- [See all Cisco Secure Email Threat Defense alternatives](https://cybersectools.com/alternatives/cisco-secure-email-threat-defense)
- [See all ID Agent Graphus alternatives](https://cybersectools.com/alternatives/id-agent-graphus)

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Source: https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-id-agent-graphus

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

More on Cisco Secure Email Threat Defense and ID Agent Graphus: 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
