Microsoft Defender for Cloud vs Wiz vs Orca: Real Cloud Security Cost
Short answer
Microsoft Defender for Cloud is the only one of the three with a genuinely public, granular rate card, and its foundational posture-management tier is free — a real, significant cost advantage for a small, Azure-native environment that neither Wiz nor Orca can match. But Microsoft's pricing is billed per resource type (servers, storage accounts, databases, containers) rather than per workload the way Wiz and Orca price, so a "cost per workload" comparison across all three requires real caution rather than a direct unit conversion. For a small Azure-centric environment, Microsoft is very likely dramatically cheaper; for a large, multicloud environment needing unified cross-cloud visibility, Wiz's or Orca's broader platform may justify its cost premium.
Pricing at a glance
| Microsoft Defender for Cloud | Wiz | Orca Security | |
|---|---|---|---|
| Public rate card | Yes — confirmed on Azure's own pricing page, though the paid tiers' exact per-resource rates require checking the in-portal pricing or a cost calculator | None — custom quote required | None — custom quote required |
| Free tier | Yes — Foundational CSPM (continuous assessment, Secure Score, recommendations across Azure, AWS, and GCP) is free indefinitely | No | No |
| Billing basis | Per resource type and count — servers, storage accounts, databases, serverless containers, and serverless functions are each billed separately | Workload volume or cloud spend, with separate module line items | Workload volume or cloud spend |
| Reported/confirmed rates | Defender CSPM (advanced posture): reported around $5.11/billable resource/month, consistent with Microsoft's own in-portal figure of roughly $5/billable resource/month. Defender for Servers Plan 1: reported ~$5/server/month. Defender for Servers Plan 2: reported ~$15/server/month | Reported $24,000/year for a 100-workload Essential deployment; separately, full-stack deployments on 500+ workloads reported to routinely exceed $400,000/year; a conflicting per-workload estimate of $10–30/workload/year also circulates and does not reconcile with the tier-anchor figures | Reported 15–30% below Wiz for comparable posture-management scope |
| Volume discount mechanism | Pre-purchased Defender for Cloud Commit Units, reported to save 10–22% off pay-as-you-go rates depending on volume tier | Reported multi-year commitment discounts of 20–35% | Not specifically reported |
| Multicloud coverage | Yes — Azure, AWS, and GCP are all covered under the free Foundational CSPM tier, with paid workload protection extending across all three as well | Yes — a core part of Wiz's value proposition | Yes — a core part of Orca's value proposition |
What headline pricing excludes
Microsoft's free Foundational CSPM tier gives posture visibility only — it does not include workload protections, threat detection alerts, just-in-time VM access, adaptive application controls, or file integrity monitoring. Real workload protection requires enabling one of the paid plans (Defender CSPM for advanced posture, or Defender for Servers/Containers/Databases/APIs for active protection), each billed separately per resource type.
Defender for Servers' free Log Analytics allowance (500 MB/day per machine) is easy to exceed, and the overage cost can dwarf the plan fee itself. A busy server with verbose audit logging (process creation events, network connection logging, DNS query logs) can generate 2–4 GB/day — well past the free allowance — at a reported pay-as-you-go rate of roughly $2.76/GB. A detailed analysis found that a 50-server fleet with aggressive logging could generate $3,000–8,000/month in pure Log Analytics overage costs alone, entirely separate from and potentially exceeding the underlying Defender plan fee.
Wiz's own reported pricing contains a genuine, unresolved internal inconsistency that makes a "cost per workload" figure unreliable at anything but the smallest scale. One detailed source anchors Wiz at $24,000/year for a 100-workload Essential deployment (implying roughly $240/workload/year), while a separate estimate of $10–30/workload/year would imply a dramatically lower cost at scale. These two figures likely describe different module scopes (a full-stack multi-module deployment versus a posture-only one) rather than being directly comparable measurements of the same product.
Hidden costs
- Microsoft's Log Analytics overage is the single most important hidden cost in this entire comparison — a company budgeting only the per-server Defender plan fee, without modeling its actual logging verbosity, can find its real bill several times higher than the advertised per-resource rate suggested.
- Multi-cloud connectors for AWS and GCP on Microsoft's platform carry a per-resource surcharge that mirrors the underlying Azure pricing — a genuinely multicloud environment on Microsoft Defender for Cloud isn't cheaper simply because posture management itself is free across all three clouds; the paid workload-protection layer still charges per resource regardless of which cloud that resource lives in.
- For organizations already needing Microsoft 365 E5-adjacent products (Endpoint Plan 2, Identity, Office 365 Plan 2, Cloud Apps), bundling into E5 or the E5 Security add-on is reported to be usually cheaper than buying Defender for Cloud's adjacent security products individually — a real bundling consideration for a Microsoft-centric organization evaluating its total security spend, not just cloud-workload protection specifically.
- Both Wiz's and Orca's actual per-workload cost depends heavily on which modules are activated simultaneously — the same structural caution that applies within Wiz's own reported figures applies to any cross-vendor comparison as well.
Worked scenarios
Given that Microsoft bills per resource type while Wiz and Orca bill per workload or cloud spend, exact like-for-like scenario math isn't possible without specifying an identical resource mix — the figures below illustrate the general shape of the comparison rather than a precise conversion.
Small Azure environment (illustrative: roughly 20 servers, Azure-native)
| Estimated annual cost | |
|---|---|
| Microsoft Defender for Cloud (Foundational CSPM free + Defender for Servers Plan 1) | 20 × $5 × 12 = $1,200/year, plus Foundational CSPM at $0 |
| Wiz (Essential tier, flat pricing regardless of falling under the 100-workload anchor) | Reported $24,000/year — a flat tier price that doesn't scale down proportionally for a smaller environment |
| Orca (illustrative transformation of the reported Wiz Essential-tier benchmark, not an independent Orca figure) | $17,000–20,000/year, calculated by applying Orca's reported 15–30% discount to the Wiz Essential-tier anchor above — not a benchmark reported for Orca specifically |
This is the scenario where Microsoft's advantage is starkest: a small, genuinely Azure-native environment can get basic posture visibility for free and active server protection for close to $1,200/year, versus a flat five-figure entry price for either Wiz or Orca — a real, substantial gap for a company whose infrastructure doesn't yet justify a dedicated multicloud CNAPP platform.
500 workloads (illustrative: 500 servers on Microsoft's per-resource model)
| Estimated annual cost | |
|---|---|
| Microsoft Defender for Servers Plan 2 | 500 × $15 × 12 = $90,000/year, before any Log Analytics overage, which could add substantially more depending on logging verbosity |
| Wiz | Reported full-stack estimate could run well into six figures at this scale (per the $400,000+/year figure reported for 500+ workload full-stack deployments), while a posture-only deployment using the lower per-workload estimate could be dramatically less — this article does not reconcile these two Wiz figures, consistent with the genuine scope ambiguity in available sources |
| Orca | Not independently estimated at this scale — because the Wiz figures above are themselves ambiguous in scope (posture-only versus full-stack), applying Orca's reported 15–30% discount to either would only compound that uncertainty rather than produce a meaningful number; this article does not derive an illustrative Orca figure here |
At this scale, the comparison depends heavily on what "500 workloads" actually means for each vendor's billing model — Microsoft's per-resource-type pricing and Wiz's or Orca's per-workload pricing are not measuring identical scope, and this article does not force a false equivalence between them.
5,000 workloads (illustrative: 5,000 servers)
| Estimated annual cost | |
|---|---|
| Microsoft Defender for Servers Plan 2 | 5,000 × $15 × 12 = $900,000/year, reducible by 10–22% via pre-purchased Commit Units, before any Log Analytics overage |
| Wiz / Orca | Enterprise-scale, individually negotiated; no confirmed or reliably estimable figure exists at this scale for either vendor |
At true enterprise scale, all three vendors' actual cost depends on negotiated terms, resource mix, and logging configuration to a degree that makes a confident point estimate impossible from public information for any of them.
Normalizing across billing units
This is the central finding of this article: Microsoft Defender for Cloud, Wiz, and Orca do not bill on the same unit, and forcing them into a single "cost per workload" table would create false precision. Microsoft charges per resource type (a server, a storage account, a database, a serverless function each have their own rate); Wiz and Orca charge on workload volume or cloud spend with module-based additions. A company should model its own actual resource inventory against Microsoft's per-resource-type calculator, and request an identically-scoped quote from Wiz and Orca separately, rather than trying to convert one vendor's pricing into the other's unit.
Break-even and crossover
The clearest calculable observation in this category is scale-dependent rather than a single crossover point: Microsoft's free-and-cheap entry point makes it dramatically more cost-effective for a small, Azure-native environment, while Wiz's flat-tier entry pricing (reported at $24,000/year, with an illustrative $17,000–20,000/year for Orca derived by applying its reported discount to that same Wiz figure) doesn't scale down for a small deployment the way Microsoft's genuinely usage-based, free-tier-inclusive model does. The crossover point at which Wiz's or Orca's broader multicloud platform capability becomes worth their cost premium over Microsoft's native tooling depends on how genuinely multicloud an organization's infrastructure is — a company running substantial workloads outside Azure loses much of Microsoft's cost advantage, since Microsoft's paid workload-protection tiers charge the same per-resource rate regardless of cloud, while Wiz's and Orca's core value proposition is unified cross-cloud visibility that Microsoft's Azure-centric tooling doesn't replicate as deeply.
Who pays more, and when
- A small-to-mid-size company running primarily on Azure is very likely to find Microsoft Defender for Cloud dramatically cheaper than either Wiz or Orca for comparable basic posture and workload protection, given its free foundational tier and modest per-resource paid rates.
- A genuinely multicloud organization needing unified visibility and a single pane of glass across AWS, Azure, and GCP is the buyer profile Wiz and Orca are specifically built for — Microsoft's tooling technically covers all three clouds too, but is reported to be less mature outside its native Azure environment.
- A company with verbose logging requirements on Defender for Servers should model Log Analytics overage costs explicitly before assuming the advertised per-server rate represents the real cost — this hidden cost is reported to potentially exceed the underlying plan fee itself.
- A Microsoft 365 E5 shop already paying for adjacent security products (Endpoint, Identity, Office 365, Cloud Apps) should evaluate bundled E5 Security pricing before assuming Defender for Cloud's workload-protection costs are additive to a fully separate security stack.
Limitations and uncertainty
Microsoft's Foundational CSPM free tier and its general pricing structure are confirmed directly from Azure's own official pricing page; the specific per-resource dollar figures for Defender CSPM, Defender for Servers Plan 1, and Plan 2 are reported from third-party analysis rather than a single, clearly published master rate card, though they are broadly consistent with figures visible in Microsoft's own in-portal pricing displays. Neither Wiz nor Orca publishes pricing at all, and Wiz's own reported figures contain a genuine, unresolved scope ambiguity (a roughly 30-to-80-fold discrepancy between two different reported per-workload cost bases) that this article does not attempt to resolve. Because the three vendors bill on fundamentally different units, none of the scenario comparisons in this article should be read as a precise, like-for-like cost conversion — they illustrate general cost shape and relative positioning rather than an exact crossover.
Official sources
- azure.microsoft.com/en-us/pricing/details/defender-for-cloud/ (official; per-resource rates for paid tiers require the in-portal calculator for full precision)
- Wiz and Orca do not publish pricing; figures in this article are drawn from multiple independent third-party pricing analyses