Vaikora › Compare › Vaikora vs Abnormal Security

Vaikora vs Abnormal Security

Both integrate through the Microsoft Graph API. One analyses in its own cloud, one in yours.

Abnormal Security is a cloud-native behavioural AI platform for email security, integrated through the Microsoft 365 API and delivered as SaaS. Vaikora for Microsoft 365 uses the same style of API integration but deploys from the Azure Marketplace into your own Azure subscription, so message analysis happens on a VM in your tenant and detections land in your own Sentinel. If a vendor cloud processing your mail is acceptable, Abnormal is a mature, well-established choice. If it is not, that is the question Vaikora exists to answer.

At a glance

Capability	Vaikora for Microsoft 365	Abnormal Security
Integration method	Microsoft Graph change notifications, no MX change	Microsoft 365 API integration, no MX change
Where messages are analysed	A VM in your own Azure subscription	Abnormal's cloud platform
Deployment	Azure Marketplace ARM template into your resource group	SaaS, connected by administrator consent
Detection stack	Data443 engine, ClamAV, local model server	Behavioural AI models
SOC integration	Azure Monitor and Sentinel workbook plus analytic rules	Abnormal console, with SIEM export
Operational burden	You run the VM, and you own the boundary	Fully managed by the vendor
Best fit	Sovereignty, residency or contractual constraints	Teams who want managed behavioural detection

How they compare

Where the analysis runs

This is the difference that matters and it is architectural, not a feature checkbox. Abnormal ingests from Microsoft 365 and applies its models in Abnormal's own cloud, which is what lets it be fully managed and continuously improved across its whole customer base. Vaikora provisions a VM inside your subscription and scores messages there, which means the processing boundary is one you already audit and already have a contract for. Neither is universally correct: one buys you managed detection, the other buys you a boundary you control.

Deployment and reversibility

Neither product sits in the mail path, so neither requires an MX cutover, and both can be removed without a mail-flow migration. Vaikora's install is an ARM template you run in your own tenant followed by AAD admin consent, so the artefacts are visible in your subscription from the first minute. Abnormal's install is administrator consent to a SaaS application, which is faster and involves nothing to operate.

Who runs it afterwards

Abnormal is fully managed: model updates, scaling and availability are the vendor's problem. Vaikora leaves you owning a VM, which is a real operational cost and should be counted honestly. Organisations choose it when that cost is worth paying for the residency and control it buys, not because running infrastructure is inherently better.

How findings reach the SOC

Vaikora provisions Azure Monitor and Sentinel resources as part of the deployment, so detections appear in the same Sentinel workspace as the rest of your telemetry and existing hunting queries and incident workflows apply. Abnormal provides its own console with SIEM export, which is a strong workflow in its own right and a better fit for teams not standardised on Sentinel.

Who each is best for

Choose Vaikora when

Data residency, sovereignty or contractual terms make vendor-cloud processing difficult.
The security team is standardised on Microsoft Sentinel.
The tenant boundary is one you already audit and want detection to stay inside.
Procurement through Azure Marketplace is preferred.

Choose Abnormal Security when

Fully managed detection with no infrastructure to run is the priority.
You want a mature behavioural platform with a large cross-customer signal base.
Your SOC does not use Sentinel and prefers a dedicated console.
You have no residency constraint on mail processing.

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Frequently asked questions

What is the real difference between Vaikora and Abnormal Security?

Where the analysis happens. Both connect to Microsoft 365 through the API rather than changing MX records, so the integration style is similar. Abnormal analyses messages in its own cloud as a managed service. Vaikora deploys into your Azure subscription and analyses them there, which matters when residency or sovereignty rules make vendor-cloud processing hard to sign off.

Do I have to change my MX records?

No, and this is true of both products. Vaikora subscribes to Microsoft Graph change notifications, so it sees mail as it arrives without sitting in the delivery path. Nothing is rerouted, which also means removing it does not require a mail-flow migration.

Does Vaikora replace Microsoft's own filtering?

No. It is additive. Microsoft 365 keeps doing what it does and Vaikora runs alongside it, with findings going to Azure Monitor and Sentinel.

What do we actually have to operate?

One Azure VM in your own subscription, provisioned by the Marketplace ARM template. That is a genuine operational cost and worth weighing against a fully managed service. Organisations pick it when the control and residency it buys are worth that cost.