> ## Content Index > Fetch the complete content index at: https://www.edgewisely.com/llms.txt > Use this file to discover other available public pages before exploring further. # Top 7 EDR Tools for Endpoint Detection and Response in 2026 - URL: https://www.edgewisely.com/top-7-edr-tools-2026/ - Published: 2026-09-30T07:23:20.000Z - Updated: 2026-09-30T07:23:47.000Z - Description: For security teams choosing or replacing an endpoint agent. Two things changed this year: four of the biggest vendors stopped showing up for MITRE's adversary emulation, and Elastic deleted per-endpoint pricing entirely. - Author: John Karpentar - Tags: Roundups, Cloud **For security teams choosing or replacing an endpoint agent. Two things changed this year: four of the biggest vendors stopped showing up for MITRE's adversary emulation, and Elastic deleted per-endpoint pricing entirely.** EDR — endpoint detection and response — is software that watches process, file, registry and network behaviour on laptops and servers, flags attacker activity that antivirus signatures miss, and lets you isolate or roll back a compromised machine. The leaders in 2026 are **CrowdStrike Falcon**, **Microsoft Defender for Endpoint** and **SentinelOne Singularity**, with **Palo Alto Cortex XDR**, **Sophos Intercept X**, **Bitdefender GravityZone** and **Elastic Security** taking the rest of the field. Which one fits depends less on detection scores — they cluster — than on deployment model, platform parity and what the vendor will tell you about price. ## How we picked these Four criteria, in this order: - **Recent independent test evidence, weighted for participation.** A vendor that submits to [MITRE ATT&CK Evaluations](https://attackevals.mitre-engenuity.org/?ref=edgewisely.com), AV-Comparatives or SE Labs and publishes a mediocre result tells you more than one that stopped entering. We note where a score is post-tuning. - **Deployment flexibility.** SaaS-only versus genuine on-premises or air-gapped operation. This is the single hardest constraint to work around. - **Pricing transparency.** Whether the vendor publishes a number at all, and whether the tier named for EDR actually contains EDR. - **Platform parity.** What the agent does on macOS and Linux versus Windows. Marketing pages rarely say; docs do. Scale and revenue were used as tiebreakers, not as a primary ranking input. All pricing and feature claims are as of **September 2026**. Three things are worth knowing before the list. **The "100% on MITRE" claim is usually a post-tuning number.** MITRE's Enterprise 2025 round (ER7), published **10 December 2025**, emulated Scattered Spider and Mustang Panda. It runs an initial pass, then tells the vendor which substeps it missed and retests after tuning. CrowdStrike scored **89/90 on the initial run** and reached 90/90 only on the configuration-change run — its own footnote says the reported results reflect that second run. Sophos's 100% carries the same footnote. MITRE states it does not rank vendors. **Only 11 vendors entered ER7.** Microsoft, SentinelOne, Palo Alto and Bitdefender all sat it out. Four of the seven tools below have no adversary-emulation evidence newer than 2024. **Pricing disclosure is getting worse, not better.** Microsoft has removed standalone Defender for Endpoint P1 and P2 list prices from its site entirely. And the tier named for EDR often isn't the one that has it — **CrowdStrike Falcon Pro at $99.99/device/year does not include EDR**. ## Quick comparison | Company | Best for | Deployment | Published EDR entry price | | ------------------------------- | ------------------------------------------------------ | ------------------------- | ----------------------------------------- | | CrowdStrike Falcon | Large enterprises wanting the deepest module catalogue | SaaS only | $184.99/device/yr (Enterprise) | | Microsoft Defender for Endpoint | Microsoft 365 E5 shops | SaaS | Not published standalone | | SentinelOne Singularity | Air-gapped and sovereignty-constrained environments | SaaS, on-prem, air-gapped | $179.99/endpoint/yr (Complete) | | Palo Alto Cortex XDR | Federal buyers consolidating on Palo Alto | SaaS only | Quote only | | Sophos Intercept X | Mid-market and MSP-led buyers wanting MDR | SaaS only | $110.00/user/yr (AWS Marketplace) | | Bitdefender GravityZone | Cost-sensitive and self-hosted buyers | SaaS and self-hosted | Quote only (Business Security Enterprise) | | Elastic Security | Teams already running Elasticsearch | SaaS and self-managed | Usage-based, no per-endpoint fee | ## 1\. CrowdStrike Falcon [CrowdStrike](https://www.crowdstrike.com/?ref=edgewisely.com) runs a single sensor with no on-premises controllers. On Windows it uses documented Microsoft kernel interfaces — filter manager, registry filtering, process and thread notification callbacks, ELAM — rather than syscall hooking, and it is PatchGuard-compatible and WHQL-certified. macOS uses Apple's Endpoint Security Framework with no kernel extension; Linux uses eBPF. Detection combines behavioural Indicators of Attack with on-sensor and cloud machine learning, feeding a graph model and Charlotte AI triage. The company reported **ARR of $5.84 billion, up 25% year over year**, for the quarter ended 31 July 2026\. Its strongest evidence is not MITRE but SE Labs: in a test run over September and October 2025, Falcon scored **3,596 out of 3,596 on total accuracy** — detection 360/360, protection 2,596/2,596, legitimate software 640/640. ![CrowdStrike Falcon console showing endpoint detection triage](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-1-crowdstrike.jpg) Image: [CrowdStrike](https://www.crowdstrike.com/en-us/platform/endpoint-security/?ref=edgewisely.com) **Best for:** Large enterprises that want the deepest module catalogue and can absorb the add-on economics. **Pros** - Verified 100% across all three SE Labs axes, independently published rather than vendor-claimed - Genuinely zero false positives in MITRE ER7's noise test — MITRE recorded `Reported: 0`, against 2 for Cybereason and 1 each for Cynet and Sophos - Still enters public independent testing while several competitors have withdrawn - Consolidation is measurable: 51% of subscription customers run six or more modules, 26% run eight or more **Cons** - **EDR is paywalled behind the top self-serve tier.** Falcon Go is $59.99/device/year (capped at 100 devices) and Falcon Pro is $99.99 — neither includes EDR. You need **Falcon Enterprise at $184.99/device/year**. CrowdStrike's own FedRAMP materials enumerate 26 separately authorised products, so sticker price understates realistic spend. - **SaaS only.** No on-premises, self-hosted or air-gapped console. CrowdStrike's federal FAQ states the platform requires no on-premises servers, databases or controllers — which is the selling point and the limitation. - The 2024 Channel File 291 outage still shapes procurement. A template type defined 21 input parameter fields while the integration code supplied 20, causing an out-of-bounds read in a kernel-mode driver. Microsoft put the blast radius at **8.5 million Windows devices**. CrowdStrike's root-cause analysis documents the fixes — runtime bounds checking, staged deployment rings, and customer-controlled update policies — but **Delta Air Lines v. CrowdStrike is still in discovery**, and DOJ and SEC inquiries into revenue and ARR recognition remain open. - AV-Comparatives named CrowdStrike among vendors with above-average false positives on non-business software in its H1 2026 business test, recording 8 — which cuts against the zero-FP framing. ## 2\. Microsoft Defender for Endpoint [Microsoft Defender for Endpoint](https://www.microsoft.com/en-us/security/business/endpoint-security/microsoft-defender-endpoint?ref=edgewisely.com) is asymmetric by design. On Windows the sensor is built into the operating system — there is no agent to install, and onboarding is a configuration action. Linux uses an eBPF-based sensor shipped as a package; macOS uses an Apple system extension. Plan 2 adds EDR, automated investigation and remediation, advanced hunting, threat analytics and automatic attack disruption. Plan 1 does not: it is limited to four manual response actions with no automated investigation. Microsoft did not participate in ER7\. Its most recent round is ER6 in 2024, where it claims 100% technique-level detection with zero false positives. It declined the protection test outright, writing that it "does not mirror realistic cyberthreats" and that it would not implement the test's recommendations — yet its product page advertises "100% protection" in that evaluation. The underlying blog substantiates detection, not protection. ![Microsoft Defender for Endpoint device page showing alerts and device risk detail](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-2-microsoft.jpg) Image: [Microsoft](https://learn.microsoft.com/en-us/defender-endpoint/investigate-machines?ref=edgewisely.com) **Best for:** Microsoft 365 E5 shops wanting cross-domain correlation at zero incremental licence cost. **Pros** - No agent to deploy on Windows, which removes an entire class of install and upgrade failures - Genuine correlation across [identity](https://www.edgewisely.com/top-7-identity-access-management-solutions-2026/), email, SaaS and cloud, with automatic attack disruption included in Plan 2 - On M365 E5, Plan 2 is zero incremental cost, and Security Copilot has been bundled into E5 at no added charge since 18 November 2025 - Coverage across GCC, GCC High and DoD clouds with dedicated portals **Cons** - **No standalone list price.** P1 and P2 prices are absent from Microsoft's pricing surfaces. The only published enterprise path is the Microsoft Defender Suite at **$12.00/user/month**, which itself requires an M365 E3 bundle first. M365 E5 lists at $60.00/user/month with Teams. - **Real platform gaps.** Automatic attack disruption, attack-surface-reduction rules, EDR in block mode, automated investigation, threat analytics and device discovery are Windows-only. Linux lacks device control, tamper protection and web protection. Microsoft has **retired its cross-platform capability matrix**, so buyers can no longer get a vendor-published comparison. - Retention is short: **six months of EDR telemetry, 90 days of device timeline** by default, which pushes longer investigations into paid Sentinel or Log Analytics. - Licences cover five devices per user and exclude servers, which must be licensed separately. ## 3\. SentinelOne Singularity [SentinelOne](https://www.sentinelone.com/?ref=edgewisely.com) runs one agent across endpoint, identity and cloud workloads, with static and behavioural AI models executing on the device rather than in the cloud. Storyline correlates process activity into attack narratives, and the patented one-click rollback reverses ransomware file changes. Its clean differentiator is deployment. SentinelOne offers cloud SaaS, **on-premises** and **air-gapped** configurations, and this is not federal-only — the Singularity Endpoint datasheet published 12 May 2026 lists SaaS, on-premises, hybrid and air-gapped. CrowdStrike offers none of those. The business picture is weaker. ARR reached **$1.218 billion, up 22%**, for the quarter ended 31 July 2026, against a GAAP net loss of $93.4 million and negative free cash flow of $13.2 million. Customers with ARR above $100,000 grew 13%, down from 18% two quarters earlier. ![SentinelOne Singularity Complete product tour interface](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-3-sentinelone.jpg) Image: [SentinelOne](https://www.sentinelone.com/tour/?ref=edgewisely.com) **Best for:** Air-gapped, OT/ICS, classified and data-sovereignty-constrained environments. **Pros** - Genuine on-premises and air-gapped deployment, which CrowdStrike does not offer at all - Verified 100% analytic coverage — 80 of 80 substeps at technique level — in MITRE's 2024 round, joint best in that cohort - On-device static and behavioural AI with patented one-click rollback, so detection does not depend on cloud reachability - Singularity Complete at **$179.99/endpoint/year** includes cloud workload protection, which CrowdStrike's comparable $184.99 tier excludes **Cons** - **Rollback is Windows-only.** It depends on Windows Volume Shadow Copy Service. SentinelOne's marketing pages promote one-click rollback with no platform qualifier; the limitation is structural, not a roadmap item. - **It has largely withdrawn from public independent testing.** It [publicly declined ER7](https://www.sentinelone.com/blog/sentinelone-and-the-mitre-attck-evaluations-enterprise-2025/?ref=edgewisely.com) on 12 September 2025 to prioritise engineering resources, and does not appear in AV-Comparatives' 2025 or 2026 enterprise tests. In the one recent [head-to-head](https://www.edgewisely.com/crowdstrike-vs-sentinelone/) — SE Labs, September to November 2025 — it scored 98% total accuracy and 95% protection against CrowdStrike's 100% and 100%. - **Retention is the sharpest licensing edge.** Complete includes 14 days. Ninety-day retention, identity detection and managed threat hunting all require Commercial at $229.99 — a 28% step. Published prices apply to 5–100 workstations, and SentinelOne's own footnote says partner pricing controls the final number. - The company cut **8% of its workforce in May 2026**, taking roughly $25 million in charges, and has had three CFOs in about four months. ## 4\. Palo Alto Networks Cortex XDR [Palo Alto Networks](https://www.paloaltonetworks.com/?ref=edgewisely.com) ships a single agent across Windows, macOS, Linux, Android, iOS and Kubernetes, layering exploit prevention (ROP, SEH, DEP, shellcode), local analysis ML, behavioural threat protection and WildFire sandboxing. A Broker VM — a hardened on-premises virtual appliance — bridges the customer network to the cloud tenant. New in 2026 is Agentic Endpoint Security, from the Koi acquisition, covering AI coding agents, MCP servers and IDE extensions. Its regulated-market credentials are the strongest here: **FedRAMP authorised at both Moderate and High**, with Cortex XDR explicitly named in both package descriptions, and 25 tenant regions with in-country data residency. In AV-Comparatives' EPR 2025 test it was certified on **Cortex XDR Prevent 8.8 — its cheapest tier** — scoring 99.0% combined at a modelled five-year TCO of $882 per agent. ![Palo Alto Cortex XDR console with an XQL threat-hunting query and results grid](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-4-palo.jpg) Image: [Palo Alto Networks](https://www.paloaltonetworks.com/cortex/cortex-xdr/hands-on-workshop?ref=edgewisely.com) **Best for:** Federal and regulated buyers already consolidating on Palo Alto. **Pros** - Single agent with genuinely broad module coverage — prevention, EDR, host firewall, disk encryption, device control, file integrity monitoring and vulnerability assessment - Best-in-round MITRE ER6 detection **with no configuration changes**, and unlike Microsoft it entered and reported the protection test - AV-Comparatives certified on its lowest-cost tier, at a modelled TCO well below CrowdStrike's $1,245 - FedRAMP High with 25 data-residency regions **Cons** - **Zero pricing transparency.** No published price, no pricing page, no first-party marketplace listing. A crawl of Palo Alto's own sitemap surfaces exactly one product pricing page, and it is for Prisma Cloud. - **The SKU taxonomy contradicts itself.** The FY2026 10-K describes two tiers, XDR Prevent and XDR Pro; current docs describe Cortex XDR Pro EP and Cortex XDR EP Cloud. The data lake has been renamed twice. - **Linux is the weak platform.** ELF malware analysis, EDR data collection and behavioural threat analysis all require a kernel module, meaning SecureBoot must be disabled or Palo Alto's certificate imported. On unsupported kernels the agent degrades to asynchronous mode. - A persistent tamper-protection vulnerability class runs from CVE-2023-3280 through **CVE-2025-0112**, **CVE-2026-0230** and **CVE-2026-0232**, with high-severity Broker VM findings including **CVE-2026-0231** (CVSS 8.4) and **CVE-2026-0304** (published 9 September 2026). - Palo Alto positions XDR as an on-ramp to XSIAM on its own product page, which is worth factoring into a multi-year commitment. ## 5\. Sophos Intercept X [Sophos](https://www.sophos.com/en-us?ref=edgewisely.com) runs a single agent where EDR is a licence flip rather than a second install. The stack includes deep-learning malware prevention, more than 60 anti-exploit mitigations and CryptoGuard ransomware protection with remote ransomware detection — catching encryption that originates on another compromised host. It can also run in sensor mode alongside third-party antivirus, including Microsoft Defender as the prevention layer. Sophos was the strongest detector in ER7\. It detected all 16 attack steps and all 90 substeps with zero misses, reaching **technique-level detection on 86 of 90** — the best fidelity of any participant. Its own footnote confirms this is the configuration-change run. It is also the only vendor here publishing a complete four-tier feature matrix, so you can see what you don't get before contacting sales. Base Sophos Endpoint gets **zero rows in the entire detection section**; EDR adds 30-day retention and device isolation; XDR adds 90 days and third-party ingestion; MDR adds 24/7 monitoring and a $1 million breach warranty. ![Sophos Central detections page showing detection severity chart and event table](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-5-sophos.jpg) Image: [Sophos](https://docs.sophos.com/central/customer/help/en-us/ManageYourProducts/ThreatAnalysisCenter/Detections/index.html?ref=edgewisely.com) **Best for:** Mid-market and MSP-led buyers who want MDR with a warranty and can tolerate performance overhead. **Pros** - Single agent, one-click EDR activation, no second agent to deploy - Best MITRE ER7 detection fidelity of any participant, across Windows, Linux and AWS - The only vendor here publishing a full public feature matrix by tier - The only one with a **published MDR list price** — $239.64/user/year on AWS Marketplace — and a $1 million breach protection warranty **Cons** - **Worst-in-test performance impact.** AV-Comparatives ranked Intercept X **last of 17** for system impact in its August–November 2025 business test (impact score 39.7), with Threat Graph creation, web control and event logging disabled for the test. Real-world protection of 98.0% placed 13th of 17, and Sophos was **not approved at all** in the H1 2026 round. - **The runtime protection stack is Windows-only.** Sophos's own documentation repeats "available for Windows devices only" for deep learning, event journals (the telemetry substrate EDR depends on), adaptive attack protection, device isolation, AMSI, IPS, remote ransomware protection and roughly 20 exploit mitigations. Remediation rollback cannot restore items on macOS. - **No list price on its own site.** The page titled "how to buy" is a quote form claiming simple per-user pricing with no hidden extras, while full disk encryption and workspace protection are add-ons at every tier including MDR, and Windows Server and Linux devices require a separate Workload Protection subscription. - Sophos publishes two different customer counts simultaneously — 600,000 in its global navigation and 625,000 on its company page. ## 6\. Bitdefender GravityZone [Bitdefender](https://www.bitdefender.com/en-us/?ref=edgewisely.com) uses a single modular agent where capabilities are licence-enabled rather than separately installed. The detection stack includes HyperDetect tunable pre-execution ML, Advanced Threat Control behavioural monitoring, Fileless Attack Defense, Sandbox Analyzer and ransomware mitigation that makes tamper-proof file copies before restoring them. Its independent test record is the best value story in this market. In AV-Comparatives' EPR 2025 test, GravityZone scored **100% active response and 99.7% combined at a five-year TCO of $210 per agent** — the lowest of any product tested, against CrowdStrike's 97.7% at $1,245\. It also has **zero entries in the CISA Known Exploited Vulnerabilities catalog**, ever, verified against catalog version 2026.09.29. It is the only vendor here with a genuine self-hosted console, delivered as a virtual appliance in OVA, XVA and VHD formats. ![Bitdefender GravityZone incident investigation view showing a process tree and alerts panel](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-6-bitdefender.jpg) Image: [Bitdefender](https://techzone.bitdefender.com/en/security-layers/detection/incident-investigation-and-forensics.html?ref=edgewisely.com) **Best for:** Cost-sensitive and self-hosted buyers who want an OEM-grade detection engine. **Pros** - Best independently measured prevention economics anywhere: 99.7% combined at $210 five-year TCO per agent - The only true self-hosted console in this list, which matters for air-gapped and sovereignty requirements - Real self-serve published pricing — 100 devices of Small Business Security lists at $2,574.99/year, roughly $25.75 per device - Zero CISA KEV entries, against 7 for Sophos and 12 for Trend Micro **Cons** - **EDR is gated behind the top, quote-only tier.** All three buy-online SKUs — Small Business Security, Business Security and Business Security Premium — exclude EDR. You need Business Security Enterprise, which has no published price, and XDR sensors are then sold individually on top. - **Self-serve purchase is hard-capped at 100 endpoints.** Above that you are in partner-quote territory with no public price. - **Significant platform non-parity.** Bitdefender's own feature matrix shows Linux servers lack firewall, ransomware mitigation, device control, tamper protection, application control and fileless attack protection; macOS lacks firewall, ransomware mitigation, HyperDetect, advanced anti-exploit and Sandbox Analyzer. New AI Visibility and Control is Windows-only. - **Stale claims on live pages.** Several Bitdefender pages still lead with a 2023 MITRE result and a 2023 AV-TEST award. It did not participate in ER7. - **CVE-2025-2244** in the GravityZone Console carried a CVSS of 9.5 — insecure PHP deserialisation allowing unauthenticated command execution, fixed in Console 6.41.2-1. ## 7\. Elastic Security [Elastic](https://www.elastic.co/?ref=edgewisely.com) delivers EDR through the Elastic Agent with the Elastic Defend integration, managed via Fleet in Kibana. Prevention covers malware, ransomware with canary files and MBR protection, memory threats and malicious behaviour, plus host isolation and a response console. Detection content lives in a public GitHub repository, so rules are auditable and forkable — though licensed under Elastic License v2, which is source-available rather than open source. All telemetry lands in Elasticsearch. Elastic posted the **only perfect score in AV-Comparatives' EPR 2026 test** — 100% active response, 100% passive response, zero false alarms, and the lowest modelled operational footprint of 14 vendors. It is a Certified Leader for the second consecutive year. The pricing change is the headline. As of **23 March 2026, per-endpoint fees no longer apply** — Elastic's own footnote. You pay for ingest (from $0.09/GB) and retention (from $0.017/GB/month) instead. ![Elastic Security ransomware prevention alert in the Kibana console](https://storage.ghost.io/c/54/5a/545a66b3-60ef-480c-80ae-765bac52f6ec/content/images/2026/09/edr-7-elastic.jpg) Image: [Elastic](https://www.elastic.co/security/endpoint-security?ref=edgewisely.com) **Best for:** Teams already running Elastic who want EDR and SIEM on one data platform. **Pros** - Single agent covering endpoint, SIEM and cloud on one data platform - No per-endpoint fee at all since 23 March 2026 — a real differentiator in a market priced per seat - The best independent lab result of 2026, and the only perfect EPR score - Publicly auditable, forkable detection-rule repository **Cons** - **Two different tier models, and the gating is easy to misread.** On Serverless, ransomware and behavioural prevention sit in the entry Essentials tier. On Cloud Hosted or self-managed, the same capabilities require **Platinum**, host isolation requires Platinum or Enterprise, and the response console is **Enterprise-only**. Free self-managed Basic gets malware scanning, not EDR. - **Cost risk shifts from headcount to data volume**, which is harder to forecast. Retention choices drive the bill. - **Running Elastic Security means running an Elasticsearch cluster** — real operational burden in sizing, sharding and upgrades. - **It sat out both recent MITRE rounds** and is absent from SE Labs' Q1 2026 enterprise report, narrowing its adversary-emulation evidence. Forrester rated it a Strong Performer, not a Leader, in its Q2 2026 XDR Wave. - Elastic cut roughly **7% of its workforce on 24 June 2026**, and its chief product officer resigned in the same filing. ## How to choose **You are a Microsoft 365 E5 shop.** Use Defender for Endpoint Plan 2\. It is already paid for, the Windows sensor needs no deployment, and cross-domain correlation with identity and email is genuinely hard to replicate. Budget separately for server licences and for retention beyond six months. **You need air-gapped or on-premises operation.** SentinelOne is the only enterprise-grade option with a documented air-gapped configuration. Bitdefender is the alternative if you want a self-hosted console and can live without XDR, which is cloud-only. **You are cost-sensitive and under 100 endpoints.** Bitdefender, on published self-serve pricing and the best measured TCO in independent testing. Above 100 endpoints, or if you need the EDR tier specifically, you are quoting. **You already run Elasticsearch.** Elastic Security, now that per-endpoint fees are gone. Model your ingest volume first — that is where the cost moved, not where it disappeared. **You are a federal or heavily regulated buyer.** Palo Alto Cortex XDR for FedRAMP High and data residency, or CrowdStrike, which reached FedRAMP High in March 2025\. Accept that neither will publish a price. **You want the strongest recent detection evidence and can absorb the cost.** CrowdStrike, on the SE Labs result. Budget for Falcon Enterprise at $184.99, not Falcon Pro — and expect add-ons. **You are mid-market and want managed detection bundled.** Sophos, provided you test system impact on your own hardware first. That is where it measurably struggles. ## Frequently Asked Questions ### What is EDR? EDR stands for endpoint detection and response. It is software that continuously records process, file, registry and network activity on endpoints, applies behavioural analytics to spot attacker techniques that signature-based antivirus misses, and gives responders tools to investigate, isolate a host and reverse malicious changes. ### What is EDR in cyber security? In a security programme, EDR is the endpoint telemetry and response layer. Antivirus blocks known-bad files; EDR assumes something will get through and gives you the recording and the controls to find it and contain it. It typically feeds a [SIEM](https://www.edgewisely.com/top-7-siem-tools-2026/) and underpins incident response and threat hunting. ### What is XDR vs EDR? EDR covers endpoints only. XDR extends the same detection and correlation across identity, email, network and [cloud](https://www.edgewisely.com/top-7-cnapp-platforms-2026/), so a single incident links activity from several sources. Most vendors here sell both, with XDR as a higher tier — Sophos adds third-party ingestion and 90-day retention at its XDR level, for example. ### How does EDR work? An agent on each endpoint hooks operating system events — process creation, file writes, registry changes, network connections — and streams them to a local or cloud analytics engine. Behavioural models and detection rules match that stream against known attacker techniques, raise alerts with the surrounding process chain, and trigger responses like host isolation or file rollback. ### What are EDR tools? EDR tools are the commercial products that implement this: CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne Singularity, Palo Alto Cortex XDR, Sophos Intercept X, Bitdefender GravityZone and Elastic Security are the main enterprise options in 2026\. They differ mainly in deployment model, platform coverage and pricing structure rather than raw detection rate. --- **Editor's note — sources:** Vendor pricing and feature claims were taken from each company's own pricing, product and documentation pages on 30 September 2026\. Financial figures come from quarterly results and SEC filings: CrowdStrike Q2 FY2027 (quarter ended 31 July 2026), SentinelOne Q2 FY2027, Palo Alto FY2026 full-year, Elastic Q1 FY2027\. Independent test results come from MITRE ATT&CK Evaluations Enterprise 2025 and 2024, AV-Comparatives EPR 2025 and 2026 and its Business Security tests, and SE Labs reports. Vulnerability data comes from vendor security advisories and the CISA Known Exploited Vulnerabilities catalog, version 2026.09.29\. Where a claim is the vendor's own and not independently verified, it is attributed as such in the text.