# Messageware Server Threat Guard (STG) vs QuellSecure Active Containment: side-by-side comparison (2026) [Messageware Server Threat Guard (STG)](https://cybersectools.com/tools/messageware-server-threat-guard-stg) is a commercial [workload protection](https://cybersectools.com/categories/workload-protection) solution by [Messageware](https://cybersectools.com/companies/messageware). [QuellSecure Active Containment](https://cybersectools.com/tools/quellsecure-active-containment) is a commercial [endpoint protection platform](https://cybersectools.com/categories/epp) solution by [QuellSecure](https://cybersectools.com/companies/quellsecure). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Messageware Server Threat Guard (STG) | QuellSecure Active Containment | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Workload Protection | Endpoint Protection Platform | | Verified | No | No | | Deployment type | On-Premises | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | Company | Messageware | QuellSecure | | Headquarters | – | – | ### Use cases and capabilities | | Messageware Server Threat Guard (STG) | QuellSecure Active Containment | |---|---|---| | Windows Security | Yes | Yes | | Server | Yes | – | | Zero Day | Yes | – | | Microsoft 365 | Yes | – | | Ransomware | – | Yes | | Ransomware Prevention | – | Yes | | Windows | – | Yes | | Anomaly Detection | – | Yes | | Attack Detection | – | Yes | | Mitigation | – | Yes | | Whitelist | – | Yes | | Alerting | – | Yes | ### Core features **Messageware Server Threat Guard (STG)** 10 features listed. Sign in on the page to see them. **QuellSecure Active Containment** 8 features listed. Sign in on the page to see them. ### Integrations **Messageware Server Threat Guard (STG)** 1 integration listed. Sign in on the page to see them. **QuellSecure Active Containment** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [QuellSecure Active Containment](https://cybersectools.com/tools/quellsecure-active-containment) fits if you are a startup. ## Messageware Server Threat Guard (STG) vs QuellSecure Active Containment FAQ Common questions when comparing Messageware Server Threat Guard (STG) vs QuellSecure Active Containment for workload protection. ### What is the difference between Messageware Server Threat Guard (STG) and QuellSecure Active Containment? **Messageware Server Threat Guard (STG)**: Real-time threat detection & health monitoring for Windows/Exchange servers. Built by Messageware. **QuellSecure Active Containment**: Endpoint ransomware containment tool that stops encryption activity in real time. Built by QuellSecure. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Messageware Server Threat Guard (STG) and QuellSecure Active Containment? **Messageware Server Threat Guard (STG)** is made by Messageware. **QuellSecure Active Containment** is made by QuellSecure. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Messageware Server Threat Guard (STG) a good alternative to QuellSecure Active Containment? In part. Messageware Server Threat Guard (STG) and QuellSecure Active Containment are not in the same category on CybersecTools. Both cover Windows Security. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Messageware Server Threat Guard (STG) vs ESET Server Security](https://cybersectools.com/compare/eset-server-security-vs-messageware-server-threat-guard-stg) - [Messageware Server Threat Guard (STG) vs PC Matic Server Security](https://cybersectools.com/compare/messageware-server-threat-guard-stg-vs-pc-matic-server-security) - [Messageware Server Threat Guard (STG) vs Monarx](https://cybersectools.com/compare/messageware-server-threat-guard-stg-vs-monarx) - [QuellSecure Active Containment vs ESET Server Security](https://cybersectools.com/compare/eset-server-security-vs-quellsecure-active-containment) - [QuellSecure Active Containment vs PC Matic Server Security](https://cybersectools.com/compare/pc-matic-server-security-vs-quellsecure-active-containment) - [QuellSecure Active Containment vs Monarx](https://cybersectools.com/compare/monarx-vs-quellsecure-active-containment) ## Alternatives to each - [See all Messageware Server Threat Guard (STG) alternatives](https://cybersectools.com/alternatives/messageware-server-threat-guard-stg) - [See all QuellSecure Active Containment alternatives](https://cybersectools.com/alternatives/quellsecure-active-containment) --- Source: https://cybersectools.com/compare/messageware-server-threat-guard-stg-vs-quellsecure-active-containment For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/messageware-server-threat-guard-stg.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Messageware Server Threat Guard (STG) and QuellSecure Active Containment: 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