If you need to control what applications can see through Microsoft Graph API, you might not need a full data security platform. GraphWarden is purpose-built for Graph API governance.
Varonis is a powerful platform. But for teams focused specifically on Graph API security, common pain points emerge.
Varonis typically starts at $50K+/year as a full-platform SaaS. If your primary concern is controlling what Graph API consumers can access, you are paying for capabilities you do not use - file monitoring, SharePoint auditing, AD threat detection, and more.
Varonis covers files, emails, SharePoint, OneDrive, Teams, and Active Directory. That breadth is valuable if you need it. But if your problem is specifically "what can this application see through Graph API," Varonis does not go deep enough on API-level control.
Varonis requires significant onboarding, integration with multiple data sources, and ongoing tuning. For organizations that just need to put guardrails on Graph API access, the deployment overhead can be hard to justify.
Varonis detects anomalies and generates alerts. But it does not sit in the data path. It cannot strip properties from an API response, scope results to a specific AAD group, or block an unauthorized method before the data reaches the application.
GraphWarden is a purpose-built security proxy for Microsoft Graph API. It sits inline between your applications and Graph, enforcing per-property filtering, per-object scoping, and data transforms on every API call. Instead of monitoring what happened after the fact, GraphWarden controls what data flows through the API in real time. Narrower scope than Varonis - but far deeper on the specific problem of Graph API governance.
Six categories that matter when evaluating data security for Graph API.
Varonis monitors and alerts after data access. It watches what happened and flags anomalies. GraphWarden filters and controls during data access. It determines what data reaches the application before it arrives. Varonis is reactive. GraphWarden is proactive.
Varonis covers files, emails, SharePoint, OneDrive, Teams, and Active Directory. Broad coverage across the entire M365 ecosystem. GraphWarden focuses exclusively on Graph API calls - deeper but narrower. Every feature is designed for API-level governance.
Varonis detects anomalies and generates alerts for security teams to investigate. GraphWarden actively filters every API response - strips properties, scopes results by AAD group, and blocks unauthorized HTTP methods. Enforcement happens inline, before data reaches the application.
Varonis does not transform data in transit. It monitors and classifies data at rest. GraphWarden offers 9 transform types - mask, hash, redact, initials, domain_only, truncate, noise, regex_replace, and more - applied before data reaches the consuming application.
Varonis is a full-platform SaaS with enterprise pricing, typically $50K+/year. Significant onboarding and integration effort. GraphWarden is per-tenant, deploys in under 60 minutes, and runs on-prem or in the cloud. Pricing scales with the number of tenants, not the size of your data estate.
Both provide audit trails. Varonis focuses on file-level access - who opened what, when, and from where. GraphWarden logs API-level details: which application called which endpoint, which rule matched, how many objects were returned versus filtered, and which transforms were applied.
Varonis is the right choice for organizations that need broad data security across their entire Microsoft 365 environment - files, SharePoint, Active Directory, and email. If your primary concern is data classification, insider threat detection, and compliance reporting across multiple data stores, Varonis provides that breadth.
If you are not specifically focused on controlling what applications can see through Graph API, Varonis likely covers your needs.
GraphWarden is the right choice for organizations that need to control what their applications can see through Microsoft Graph API. If you manage Graph credentials centrally, need to enforce per-app data minimization, or want to strip sensitive properties before they reach third-party applications, GraphWarden was built for exactly that problem.
Security teams, IT administrators, and compliance officers who need API-level governance - not just file-level monitoring.
Yes. Varonis and GraphWarden are complementary, not competitive. Varonis monitors data at rest - files, permissions, and access patterns across your M365 environment. GraphWarden controls data in transit through the API - filtering responses, transforming properties, and scoping access per application.
Together, they provide both broad data security visibility and deep API-level enforcement. Varonis tells you what happened. GraphWarden prevents what should not happen.
| Capability | GraphWarden | Varonis |
|---|---|---|
| Inline Graph API proxy | Yes | No |
| Per-property response filtering | Yes | No |
| Per-object (AAD group) scoping | Yes | No |
| Data transforms (mask, hash, redact, etc.) | 9 types | No |
| Zero-knowledge secrets | Yes | No |
| Anomaly detection and alerting | 6 alert types | Advanced ML |
| File and SharePoint monitoring | No | Yes |
| Data classification | No | Yes |
| On-premise deployment | Yes | SaaS only |
| Deployment time | < 60 minutes | Weeks |
See how GraphWarden gives you inline control over every Graph API response - per property, per object, per application. No changes to your existing apps required.
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