Security teams keep running into the same wall every renewal cycle: three acronyms, three sales pitches, and no shared vocabulary for what each one actually buys. EDR vs XDR vs MDR sounds like a rhetorical question until a CISO has to defend a budget line to a board that just read about another seven-figure breach. The honest answer is that these are not competing products so much as three different bets on who does the detection work (your team, your tools, or someone else’s analysts) and how far the telemetry net gets cast.
This comparison breaks down endpoint detection and response (EDR), extended detection and response (XDR), and managed detection and response (MDR) using named, currently-sold platforms as reference points: CrowdStrike Falcon for the EDR-to-XDR path, Microsoft Defender XDR for the bundled-license path, and the managed-service model represented by providers such as Arctic Wolf and Red Canary. The goal is a specs table, a pricing table, benchmark data pulled from CrowdStrike’s own MITRE ATT&CK disclosures and IBM’s 2025 Cost of a Data Breach Report, real-world scenarios, a migration path, and a verdict grounded in the numbers rather than vendor marketing copy.
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What Is EDR, XDR, and MDR? Breaking Down the Alphabet Soup
Endpoint detection and response, or EDR, is the oldest of the three terms and the narrowest in scope. An EDR agent sits on laptops, servers, and virtual machines, watches process behavior, and gives a security analyst the tools to isolate a machine, kill a process, or roll back a malicious change. It is endpoint-only by design: if the attacker pivots to an identity provider, a cloud workload, or an email account, a pure EDR tool loses the thread.
Extended detection and response, or XDR, is what vendors built to answer that gap. XDR correlates signals from endpoints, identity systems, network traffic, cloud infrastructure, and email into a single incident timeline instead of a pile of disconnected alerts. The pitch is fewer, higher-confidence alerts because the platform has already stitched the story together across domains rather than leaving an analyst to manually pivot between five different consoles.
Managed detection and response, or MDR, is not a telemetry scope at all, it is a staffing decision. MDR wraps EDR or XDR tooling (sometimes the provider’s own stack, sometimes a licensed third-party platform) with a 24/7 team of analysts who triage alerts, hunt for threats, and in many contracts take direct action on the customer’s behalf. As Acronis frames it in its own breakdown of the category, MDR, EDR, XDR, and MSSP are overlapping terms that describe different combinations of tooling and staffing rather than four mutually exclusive product categories, which is exactly why marketing materials blur them together so often.
That overlap matters for the edr vs xdr vs mdr decision because the real axis of comparison is not “which tool is best,” it is “who is going to be awake at 3 a.m. when the alert fires, and how wide is the net that caught it.” A company with a seasoned in-house SOC might want EDR or XDR with full control. A five-person IT team at a manufacturing firm almost certainly needs MDR, because no five-person team can staff a 24/7 rotation regardless of which dashboard they’re staring at.
CrowdStrike Falcon: The EDR-to-XDR Playbook, Pricing, and MITRE Scores
CrowdStrike Falcon is the most commonly cited example of a platform that started as EDR and now markets itself across the EDR vs XDR line depending on which modules a customer licenses. CrowdStrike’s published pricing shows two self-service tiers relevant to smaller buyers: Falcon Go, priced at $7.99 per device per month on a monthly plan or $59.99 per device per year when billed annually, and capped at 100 devices; and Falcon Pro, priced at $14.99 per device per month monthly, or $99.99 per device per year billed annually.
Run the math on those two tiers and the annual discount is substantial. Falcon Pro billed monthly costs $179.88 per device over a year; billed annually it costs $99.99, a difference of $79.89 per device per year, or roughly 44% cheaper for committing upfront. Falcon Go shows the same pattern at a smaller scale: $95.88 per device per year on the monthly plan versus $59.99 annually, a $35.89 gap. For a 250-seat deployment, choosing annual billing on Falcon Pro alone saves roughly $20,000 a year compared with paying month to month, which is the kind of detail that gets lost when teams only compare the advertised monthly headline number.
On detection claims, CrowdStrike reports 100% detection and 100% protection in the 2025 MITRE ATT&CK Enterprise Evaluation, with zero false positives, and describes the round as its most demanding cross-domain platform evaluation yet. CrowdStrike also advertises a 99.99% uptime guarantee for the Falcon platform. Those figures are vendor-reported, which is standard practice across the MITRE evaluation ecosystem since MITRE itself does not publish a single ranked “winner,” it publishes raw detection data that vendors then summarize in their own words. A buyer comparing edr vs xdr vs mdr benchmarks should always check whether a vendor’s “100%” claim was tested under the same visibility configuration and adversary emulation scope as a competitor’s claim before treating the numbers as directly comparable.
Where Falcon fits the broader EDR vs XDR framing is in how CrowdStrike packages add-on modules rather than selling a second product line. The same Falcon agent that handles endpoint containment can be extended with identity-protection and cloud-security modules, which is CrowdStrike’s version of turning EDR into XDR without forcing a customer to deploy a second sensor. That matters for the device-pricing math above: adding modules generally raises the per-device rate on a given tier rather than introducing a wholly separate per-user charge the way Microsoft’s licensing stack does, which keeps CrowdStrike’s cost model easier to forecast even as scope expands.
It is also worth noting what the vendor-reported MITRE figures do not tell a buyer: cost per detection, time-to-triage for the analyst reviewing the alert, and how the platform behaves against attack techniques outside that specific year’s emulation scope. Those three variables are exactly where a Falcon Pro deployment, a Defender XDR deployment, and an MDR-wrapped deployment of either diverge in practice, even when the underlying detection engine scores identically on paper. Keep that nuance in mind when a procurement deck reduces this entire decision to a single side-by-side percentage.
Microsoft Defender XDR: Licensing Tiers, ISOC, and Platform Numbers
Microsoft Defender XDR occupies a different spot in the comparison because it is not sold as a standalone product the way Falcon is. Microsoft’s own documentation states that Defender XDR capabilities are included with eligible Microsoft plans and supported Defender products, and that a standalone deployment of the cross-domain correlation features requires Defender for Endpoint Plan 2 together with Defender for Office 365 Plan 2, with full XDR correlation activating once multiple Defender workloads are running together. In other words, “XDR” at Microsoft is less a single SKU and more an emergent property of stacking the right licenses.
Microsoft’s pricing page lists one Defender tier at $12.00 per user per month when billed annually, though the publicly listed page does not break that figure down by Plan 1 versus Plan 2 scope, so it should be read as a starting reference point rather than a confirmed price for full XDR correlation. Buyers evaluating Microsoft against CrowdStrike’s per-device model also need to account for the unit difference: Falcon prices by device, Microsoft’s listed tier prices by user, and a single user with three devices is a very different bill under each model.
On the managed side, Microsoft Defender Experts is Microsoft’s own answer to the MDR question, offered in two plans, with Plan 1 covering the customer’s existing Microsoft Defender workloads under managed oversight rather than requiring a separate third-party MDR contract. That is a meaningful detail for shops already standardized on Microsoft 365 E5: the managed layer can, in principle, sit directly on top of licenses already being paid for instead of requiring a parallel MDR vendor relationship.
Microsoft has also been pushing the XDR-plus-SIEM convergence story hard in the back half of 2026. Microsoft’s Integrated Security Operations Center capability inside Defender folds XDR, SIEM, threat intelligence, automation, and AI-assisted investigation into one portal, and starting September 23, 2026, eligible Microsoft 365 E5 and E7 customers could use it without needing an active Microsoft Sentinel workspace, a requirement that previously forced many Defender customers into a second product just to get SIEM-style correlation. On the engine side, Microsoft Defender for Endpoint’s October 12, 2026 build shows a platform version of 1.1.26090.9 and a security-intelligence update version of 1.461.1.0, consistent with Microsoft’s documented pattern of monthly engine and signature updates for Defender for Endpoint.
Arctic Wolf and the Managed Detection and Response Model
The MDR side of this comparison looks different from the EDR and XDR sides for one simple reason: MDR providers, including Arctic Wolf and Red Canary, do not publish standardized per-seat pricing the way CrowdStrike publishes Falcon Go and Falcon Pro rates. Current research turned up no verifiable, published price-per-endpoint figure, customer count, or current-year revenue disclosure for Arctic Wolf, and no published MTTD or MTTR statistic for Red Canary that could be cited with confidence for this piece. That gap is not an oversight on the provider’s part, it is close to universal in the MDR market: contracts are typically quoted per engagement based on endpoint count, log volume, and the scope of response authority the customer grants the analyst team, which makes apples-to-apples price shopping across MDR vendors genuinely harder than shopping for EDR or XDR licenses.
What is verifiable is the macro case for the category. The MDR market was sized at $5.05 billion in 2025 and $6.22 billion in 2026, with a forecast 23.2% compound annual growth rate from 2026 through 2031 that would put the market at $17.64 billion by 2031, according to MarketsandMarkets. That growth rate reflects a straightforward reality: not every organization that needs 24/7 detection coverage can hire, train, and retain a round-the-clock SOC team, and MDR is the model built specifically to rent that capability instead of building it.
The tradeoff buyers accept with any MDR engagement is control. A customer running MDR is explicitly outsourcing the “who decides to isolate this host at 2 a.m.” decision, either partially (the provider recommends, the customer approves) or fully (the provider acts under a pre-agreed playbook). That is precisely why procurement teams should ask any MDR vendor, including Arctic Wolf or Red Canary, for a written incident-response authority matrix before signing, rather than assuming “managed” means “fully autonomous” or “advisory only” by default, since both models exist in the market under the same MDR label.
Specs at a Glance: EDR vs XDR vs MDR Comparison Table
The table below lines up the three models against the specific platforms referenced throughout this piece, using CrowdStrike Falcon as the EDR/XDR-capable reference, Microsoft Defender XDR as the licensed-bundle reference, and the managed-service model (Arctic Wolf, Red Canary, and comparable MDR providers) as the staffed-service reference.
| Attribute | EDR (CrowdStrike Falcon Go/Pro) | XDR (Microsoft Defender XDR) | MDR (Arctic Wolf / Red Canary model) |
|---|---|---|---|
| Core scope | Endpoint telemetry only | Endpoint, identity, email, cloud, network correlated | Same scope as underlying EDR/XDR tooling, operated by a third party |
| Who responds to alerts | Your own analysts | Your own analysts, across more data sources | Provider’s 24/7 analyst team, per contract |
| Staffing required in-house | Full SOC rotation needed for 24/7 coverage | Full SOC rotation still needed | Minimal; provider supplies coverage |
| Representative vendor | CrowdStrike Falcon Go / Falcon Pro | Microsoft Defender XDR (Defender for Endpoint Plan 2 + Defender for Office 365 Plan 2) | Arctic Wolf, Red Canary, Microsoft Defender Experts |
| Published entry pricing | $7.99/device/month (Falcon Go, monthly) or $59.99/device/year | $12.00/user/month tier listed on Microsoft’s pricing page (billed annually) | Custom quote; no standardized public rate found in current research |
| Sold as standalone SKU | Yes | No; requires stacking Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2 | Varies; Microsoft Defender Experts Plan 1 layers on existing Defender licenses |
| Deployment complexity | Low; single agent | Moderate to high; multiple Microsoft workloads must be licensed and connected | Low on the customer side; complexity shifts to the provider |
| Best-fit buyer size | Small to mid-size with an in-house analyst | Mid-size to enterprise already inside the Microsoft 365 ecosystem | Any size lacking 24/7 internal coverage, frequently SMB and mid-market |
| 2026 market size (category) | Tracked within broader endpoint security spend | $10.98 billion | $6.22 billion |
| 2026-2031 CAGR | Not separately tracked | 28.2% | 23.2% |
| Vendor-reported 2025 MITRE detection rate | 100% (CrowdStrike, self-reported) | Not published in the same public format in current research | Depends on underlying tooling licensed by the MDR provider |
| Platform uptime commitment | 99.99% (CrowdStrike advertised) | Published in Microsoft’s service-level documentation separately | Set contractually per provider SLA |
Benchmark Data: MITRE ATT&CK Evaluations and Breach Metrics
Benchmarks in this space come from three distinct places, and conflating them is how marketing slides end up overstating the case: vendor-reported evaluation results (MITRE ATT&CK, self-summarized by the vendor), independent cost-of-breach research (IBM’s annual report), and market-tracking firms (MarketsandMarkets). Here is what each actually says, with the source attached to every figure.
| Metric | Figure | Source |
|---|---|---|
| 2025 MITRE ATT&CK detection rate (CrowdStrike Falcon, vendor-reported) | 100% | CrowdStrike |
| 2025 MITRE ATT&CK false positives (CrowdStrike Falcon, vendor-reported) | 0 | CrowdStrike |
| CrowdStrike Falcon advertised platform uptime | 99.99% | CrowdStrike |
| Global average cost of a data breach, 2025 | $4.44 million (down 9% year over year) | IBM Cost of a Data Breach Report 2025 |
| Average time to identify and contain a breach, 2025 | 241 days (lowest in nine years) | IBM Cost of a Data Breach Report 2025 |
| Breach lifecycle reduction for orgs using AI/automation extensively | 80 days shorter | IBM Cost of a Data Breach Report 2025 |
| Cost reduction for orgs using AI/automation extensively | $1.9 million lower on average | IBM Cost of a Data Breach Report 2025 |
| Breaches identified by internal security teams, average cost | $4.18 million, identified in 172 days | IBM Cost of a Data Breach Report 2025 |
| MDR market size, 2026 | $6.22 billion | MarketsandMarkets |
| MDR market CAGR, 2026-2031 | 23.2% | MarketsandMarkets |
| XDR market size, 2026 | $10.98 billion | MarketsandMarkets |
| XDR market CAGR, 2026-2031 | 28.2% | MarketsandMarkets |
Two numbers in that table are worth sitting with. First, the gap between XDR’s 28.2% projected CAGR and MDR’s 23.2% suggests enterprise buyers who already have some internal security headcount are increasingly choosing to extend their own tooling’s reach (XDR) rather than hand detection fully to a third party (MDR), even though MDR remains the faster-growing model in absolute dollar terms for organizations that never built a SOC in the first place. Second, the IBM figures on AI/automation-assisted breach response, an 80-day shorter lifecycle and $1.9 million in average savings, are the closest thing in this research to an independent, vendor-neutral case for why faster correlation, whichever acronym delivers it, pays for itself.
Pricing Breakdown: What Each Security Model Actually Costs
| Plan | Monthly billing | Annual billing | Notes |
|---|---|---|---|
| CrowdStrike Falcon Go | $7.99/device/month | $59.99/device/year | Capped at 100 devices; annual saves $35.89/device/year |
| CrowdStrike Falcon Pro | $14.99/device/month | $99.99/device/year | No published device cap; annual saves $79.89/device/year |
| Microsoft Defender (listed tier) | Not separately listed | $12.00/user/month, billed annually | Full XDR correlation requires stacking Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2; priced per user, not per device |
| Microsoft Defender Experts | Custom | Custom | Offered in two plans; Plan 1 covers existing Microsoft Defender workloads under managed oversight |
| MDR (Arctic Wolf, Red Canary, comparable providers) | Custom quote | Custom quote | No standardized public per-endpoint rate found; priced by endpoint count, log volume, and response authority granted |
The unit mismatch between these models is the single most common source of budget surprises. Falcon prices per device, so a company with 500 employees and a bring-your-own-device policy where staff carry two devices each is really pricing 1,000 units, not 500. Microsoft’s listed tier prices per user, so the same company is pricing 500 units regardless of device count, which can flip the cheaper option depending entirely on device-to-user ratio. MDR sidesteps device-versus-user entirely and instead scales with log ingestion volume and endpoint count combined, which is exactly why providers resist publishing a flat per-seat number: the real cost driver is how much data the environment generates, not how many people work there.
Market Size and Growth: The Numbers Behind the EDR, XDR, and MDR Boom
Both the XDR and MDR markets are growing faster than most mainstream enterprise software categories, and the reason is largely the same: the volume and sophistication of what IBM’s 2025 report calls the breach lifecycle keep rising, while skilled analyst headcount has not grown nearly as fast. XDR’s 2026 market size of $10.98 billion, climbing at a projected 28.2% CAGR to $38.09 billion by 2031 per MarketsandMarkets, outpaces MDR’s $6.22 billion 2026 size and 23.2% CAGR to $17.64 billion by 2031. Both trajectories are well above the low-single-digit growth typical of mature enterprise IT categories.
Standalone EDR, by contrast, is harder to size as its own line item in 2026 analyst reports precisely because vendors like CrowdStrike and Microsoft are actively repositioning pure endpoint tooling as a feature of a broader XDR platform rather than a standalone purchase decision. That repositioning shows up in search behavior too: in keyword research conducted for this piece using DataForSEO’s tool, “endpoint detection and response” as a standalone phrase pulled roughly 22,200 monthly US searches, while “edr vs xdr” pulled around 590 and “edr vs xdr vs mdr” pulled a smaller but still meaningful niche volume, a pattern consistent with buyers who already know what EDR is and are now trying to figure out whether they need to upgrade past it.
The broader AI-native security product category is also attracting fresh capital at a pace that signals investors expect consolidation around converged platforms rather than point tools. A September 2026 funding report covered by Ground News detailed a $245 million round closed by Cylake ahead of the beta release of its next-generation cybersecurity product, one of several 2026 raises aimed squarely at platforms that blend detection, exposure management, and automated response rather than shipping a single-purpose agent. Security Boulevard’s October 2026 roundup of AI security platforms made a similar point, framing the current market as converging around tools that combine EDR, SIEM, and XDR capabilities rather than treating them as separate purchases, which lines up with Microsoft’s own ISOC push to fold SIEM-style correlation directly into the Defender XDR portal.
Real-World Scenarios: EDR, XDR, and MDR in Action
Comparisons built entirely on spec sheets miss how these models actually play out once deployed. The following scenarios are grounded in the verified facts above and describe how each model tends to behave under real operating conditions, rather than attributing outcomes to a specific unnamed company.
- A 150-device engineering firm running Falcon Go hits the license ceiling. Falcon Go’s 100-device cap means any company past that headcount, even a lean one, has to upgrade to Falcon Pro or another tier well before it reaches mid-market size, turning what looked like a budget EDR choice into a forced pricing conversation within the first year or two of growth.
- A Microsoft 365 E5 shop discovers its XDR coverage was partial the whole time. Because full Defender XDR correlation requires both Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2 running together, organizations that licensed only one of the two workloads get endpoint or email visibility, not the cross-domain correlation the XDR label implies, until procurement closes the licensing gap.
- A regional healthcare network cuts its ISOC build timeline after September 2026. With Microsoft’s Integrated Security Operations Center available to eligible Microsoft 365 E5 and E7 customers without a separate Microsoft Sentinel workspace as of September 23, 2026, organizations that had budgeted for a standalone SIEM deployment alongside Defender XDR could fold that spend back into existing licensing instead.
- An organization with no overnight staff learns the real cost of silence. IBM’s 2025 data shows breaches identified by internal teams averaged $4.18 million and took 172 days to spot, while the broader average sits higher at $4.44 million and 241 days, underscoring why any company without 24/7 eyes on alerts is, structurally, the exact profile MDR exists to serve.
- A September 2026 Patch Tuesday cycle overwhelms a two-person security team. CrowdStrike’s own analysis of that month’s release counted 437 elevation-of-privilege patches, 258 remote-code-execution patches, and 171 information-disclosure patches in a single cycle, a volume that makes manual triage impractical and is precisely the kind of load XDR correlation or an MDR provider’s analyst bench is built to absorb instead of a lone IT generalist working through a spreadsheet.
- A mid-size retailer evaluates Defender Experts instead of a third-party MDR vendor. Because Microsoft Defender Experts Plan 1 is built to cover a customer’s existing Defender workloads rather than requiring a parallel vendor relationship, organizations already standardized on Microsoft 365 E5 can add managed oversight without the integration overhead of connecting an outside MDR provider’s tooling to Microsoft’s telemetry.
Use Case Recommendations: Which Model Fits Your Organization
None of the three models is universally correct, and the right pick tracks closely with headcount, existing licensing, and risk tolerance rather than raw feature count. The recommendations below map common organizational profiles to the model that fits best given the pricing and scope data above.
- Startups and small businesses under 100 devices with at least one in-house IT/security person: CrowdStrike Falcon Go is purpose-built for this tier, at $7.99 per device per month or $59.99 annually, with the device cap acting as a natural signal for when to graduate to Falcon Pro.
- Mid-market companies already paying for Microsoft 365 E5 or E7: Stack Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2 to activate true Defender XDR correlation before shopping for a third-party platform, since the marginal cost of completing the Microsoft stack is frequently lower than licensing a second vendor from scratch.
- Organizations with no overnight or weekend security coverage, regardless of size: MDR is close to mandatory here, not optional, given that IBM’s data ties internally-missed detection windows directly to higher average breach costs; request a written incident-response authority matrix from any MDR provider before signing.
- Regulated industries (healthcare, finance, critical infrastructure) with audit requirements: Microsoft’s ISOC-in-Defender approach or a comparable converged XDR-plus-SIEM platform reduces the number of separate systems an auditor has to trace evidence through, which matters more in these sectors than raw per-seat cost.
- Managed service providers (MSPs) building a security practice for clients: Acronis’s own positioning of managed EDR and XDR services for MSPs reflects a broader trend of providers reselling a wrapped version of EDR/XDR tooling as their own MDR-equivalent offering, which is worth asking about directly when evaluating an MSP’s security stack rather than assuming in-house tooling.
- Companies past 100 devices still on an entry-tier EDR plan: Treat the device-cap moment as a forcing function to re-evaluate XDR or MDR rather than simply upgrading to the next EDR tier by default, since the correlation and staffing gaps that EDR alone cannot close only get more expensive to retrofit as the environment grows.
Migration Guide: Moving From Standalone EDR to XDR or MDR
Migrating off a standalone EDR deployment is rarely a weekend project, and rushing it tends to create visibility gaps exactly when an organization is trying to close them. The sequence below reflects the licensing and integration dependencies documented above, specifically the Microsoft Defender for Endpoint Plan 2 plus Defender for Office 365 Plan 2 requirement for full XDR correlation, and the device-versus-user pricing mismatch between CrowdStrike and Microsoft’s models.
- Inventory every current data source feeding the existing EDR tool, and separately list every data source (identity, email, cloud, network) that is not currently monitored at all.
- Audit existing licensing before buying anything new; if already on Microsoft 365, check whether Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2 are both active, since partial licensing is the most common reason Defender XDR underperforms its reputation.
- Decide the staffing question first, not last: if there is no realistic path to 24/7 internal coverage, scope MDR providers in parallel with any XDR evaluation rather than sequencing MDR as an afterthought.
- Request a device-count versus user-count breakdown internally before comparing CrowdStrike’s per-device pricing against Microsoft’s per-user pricing, since the cheaper option on paper can flip once device ratios are applied.
- Run a pilot in detection-only (non-blocking) mode for 30 to 60 days on the new platform alongside the existing tool, rather than a hard cutover, to catch false-positive patterns before they disrupt production systems.
- Negotiate and document incident-response authority explicitly if MDR is in scope: specify in the contract which actions (isolate a host, disable an account, kill a process) the provider can take without a callback, and which require customer sign-off.
- Decommission the legacy EDR agent only after a full billing cycle of parallel running confirms the new platform’s detection coverage matches or exceeds the old tool’s alert volume for known-bad test cases.
- Re-baseline the budget against annual, not monthly, pricing wherever possible; the Falcon Pro annual-versus-monthly gap alone was $79.89 per device per year in this research, which compounds quickly across a few hundred seats.
Pros and Cons: EDR vs XDR vs MDR
EDR
EDR remains the cheapest, fastest-to-deploy option on this list, and for a small team with real in-house security expertise, that simplicity is a genuine strength rather than a compromise.
- Pros: Lowest published entry price (Falcon Go at $7.99/device/month); single-agent deployment; full customer control over response actions; mature, well-understood technology.
- Cons: Endpoint-only visibility means identity, email, and cloud-based attacks can go undetected until they touch a monitored device; requires in-house staff to triage and respond around the clock; Falcon Go’s 100-device cap forces an upgrade conversation as the company grows.
XDR
XDR is the model growing fastest in market-size terms (28.2% projected CAGR), and the case for it is strongest for organizations that already have multiple Microsoft or third-party security workloads that simply were not talking to each other before.
- Pros: Cross-domain correlation reduces duplicate alerts across endpoint, identity, email, and cloud; Microsoft’s ISOC push now folds SIEM-style correlation into the same portal without a separate Sentinel workspace requirement for eligible customers; fastest-growing market segment in this comparison, meaning vendor investment and feature velocity are high.
- Cons: Full correlation at Microsoft requires stacking multiple specific license SKUs (Defender for Endpoint Plan 2 plus Defender for Office 365 Plan 2), which is easy to under-license by accident; still requires an internal team to staff response around the clock; per-user vs per-device pricing models make cross-vendor cost comparisons genuinely difficult.
MDR
MDR is the only model of the three built to directly solve the staffing problem rather than the technology problem, which is also exactly why it is the hardest to price-shop.
- Pros: Closes the 24/7 coverage gap without hiring a SOC team; Microsoft Defender Experts Plan 1 can layer directly onto existing Defender licensing rather than requiring a new vendor relationship; fastest path to continuous monitoring for organizations starting from zero.
- Cons: No standardized public pricing found across major providers in this research, making budget planning harder than for EDR or XDR; response authority varies by contract and must be negotiated explicitly; customer cedes some real-time control over incident response actions.
The Verdict: Choosing Your 2026 Security Operations Model
There is no single winner in edr vs xdr vs mdr because the three models answer different questions. If the question is “what is the cheapest way to get endpoint visibility,” CrowdStrike Falcon Go at $7.99 per device per month is hard to beat, provided the device count stays under 100. If the question is “how do we stop paying for five disconnected tools that don’t talk to each other,” Microsoft Defender XDR’s bundled-license path, especially with the September 2026 ISOC rollout removing the separate Sentinel-workspace requirement for eligible Microsoft 365 E5 and E7 customers, is the strongest answer for organizations already inside that ecosystem. If the question is “who is watching this at 2 a.m. on a Saturday,” only MDR actually answers it, and the market’s 23.2% projected CAGR through 2031 suggests buyers increasingly agree that question matters more than which dashboard looks nicer.
The data point that should carry the most weight in any real budget conversation is IBM’s: organizations that lean extensively into AI and automation for detection and response cut the breach lifecycle by 80 days and the average cost by $1.9 million compared with those that don’t. That is a model-agnostic finding, it rewards faster, more automated detection whether that speed comes from a well-tuned EDR console, a correlated XDR platform, or an MDR provider’s analyst bench. Pick the model that gets an organization to that faster detection and response reality fastest, given its actual staffing and licensing starting point, rather than the model with the most acronyms on the sales deck.
Frequently Asked Questions
What’s the core difference between EDR, XDR, and MDR?
EDR monitors endpoints only and requires in-house staff to respond. XDR extends that monitoring across identity, email, cloud, and network and still requires in-house staff. MDR is a staffing model, not a telemetry scope, wrapping EDR or XDR tooling with a third-party 24/7 analyst team.
Is XDR just a more expensive version of EDR?
Not exactly. XDR is broader in scope (more data sources correlated into one incident view), but pricing depends heavily on which vendor and which licensing path is used. Microsoft’s Defender XDR pricing, for example, depends on stacking specific Defender license plans rather than paying a simple per-device upgrade fee like moving from Falcon Go to Falcon Pro.
How much does CrowdStrike Falcon cost per device in 2026?
CrowdStrike’s published pricing lists Falcon Go at $7.99 per device per month (or $59.99 annually, capped at 100 devices) and Falcon Pro at $14.99 per device per month (or $99.99 annually).
Does Microsoft 365 E5 automatically include full Defender XDR correlation?
Having E5 is a starting point, but Microsoft’s documentation specifies that standalone deployment of full cross-domain XDR correlation requires both Defender for Endpoint Plan 2 and Defender for Office 365 Plan 2 active together, so it is worth confirming both are actually licensed and connected rather than assuming E5 alone covers it.
What is Microsoft’s Integrated Security Operations Center (ISOC)?
It is a capability inside the Defender portal that combines XDR, SIEM-style correlation, threat intelligence, automation, and AI-assisted investigation in one place. As of September 23, 2026, eligible Microsoft 365 E5 and E7 customers can use it without needing a separate, active Microsoft Sentinel workspace.
Why don’t MDR providers like Arctic Wolf or Red Canary publish standard pricing?
MDR cost is driven by endpoint count, data/log volume, and the scope of response authority granted to the provider’s analysts, all of which vary enormously by customer. That variability is why most MDR contracts are custom-quoted rather than listed on a public pricing page the way CrowdStrike’s self-service EDR tiers are.
Can a company run EDR or XDR and MDR at the same time?
Yes, and it’s common. MDR providers frequently operate on top of a customer’s existing EDR or XDR tooling rather than replacing it; Microsoft Defender Experts Plan 1, for instance, is specifically built to add managed oversight on top of a customer’s existing Defender workloads rather than requiring a separate platform.
Which model should a small business with no dedicated security staff choose?
MDR is generally the strongest fit, since it is the only one of the three models built to supply round-the-clock analyst coverage without requiring the business to hire and staff its own security operations rotation. Many small businesses pair MDR with an entry-tier EDR platform like Falcon Go as the underlying tooling.
