We value your privacy

We use cookies to analyze site traffic and improve your experience. You can accept all cookies or reject non-essential ones. See our Privacy Policy for details.

GR IT SERVICES
  • Contact
Get a quote
  1. Cybersecurity
  2. Endpoint Security
Endpoint security for US businesses

Defender XDR for detection, Intune for control, run as one service rather than two projects.

Ransomware still arrives through a laptop far more often than through anything else, and signature-based antivirus stopped being an answer years ago. What actually works is four things running together: behavioral detection on the device, enforced configuration that does not drift, patching that happens without anyone remembering, and access decisions that check the health of the machine before letting it near your data. We build that on Defender for Endpoint and Intune, remotely, covering every laptop, desktop, and phone in scope around the clock.

Book an endpoint security auditSee protection layers
Defender XDR device inventory with coverage status across a managed fleet
  • EDRBehavioral detection
  • MDMDevice management
  • 5 minP1 response for managed clients
  • Cross-OSWin, Mac, iOS, Android
Six layers of endpoint security

Six controls applied to every endpoint, every day.

There is no single product that does this. There are six controls that overlap, and the overlap is the point: each one catches what the others miss. Every device in scope gets all six, compliance is checked daily rather than quarterly, and gaps are fixed on the clock. If you have filled out a cyber insurance renewal recently, you have already seen this list, because carriers now underwrite against exactly these controls.

EDR (Defender for Endpoint)

Detection based on what a process does rather than what it matches. Attack surface reduction rules block the techniques ransomware actually uses, controlled folder access protects your documents from encryption, network protection stops the callback, and automated investigation closes routine cases without waking anyone. Windows, macOS, Linux, iOS, and Android are all covered.

Device management (Intune MDM)

One place to set the rules and keep them set. Disk encryption on, screens locking, approved applications only, browser policy applied, removable storage restricted where the data warrants it. When a device drifts out of policy it is pulled back automatically instead of showing up in an audit six months later.

Patch automation

Operating system updates through Windows Update for Business, plus the third-party software that actually gets exploited: browsers, Adobe, Java runtimes. Routine patching runs monthly. Anything critical is deployed inside five business days of disclosure. Reporting breaks down by device, by platform, and by application, so you know what is lagging rather than guessing.

Conditional access integration

Access decisions read device health. A machine that has fallen out of compliance does not reach Microsoft 365, your line-of-business applications, or the VPN until it is fixed. MFA is required regardless, and risky sign-ins are evaluated in real time.

BYOD and mobile protection

App-protection policies on personal devices, no full-MDM enrollment required. Corporate data containerized in M365 apps; personal apps and photos untouched. Mobile threat defense for jailbreak / root / unsafe-network detection.

Monitoring and 24/7 SOC integration

Defender XDR alerts feed Microsoft Sentinel SIEM. Analysts triage endpoint incidents within SLA around the clock. Auto-investigation closes low-severity incidents; high-severity escalated to named engineers.

Why US businesses route endpoint security through us

Four reasons IT leaders choose our endpoint operating model.

Microsoft-native, no agent conflict

Both products live inside the operating system rather than beside it. That removes the two most common causes of endpoint instability we see on takeover: an antivirus product wrestling with Defender, and a management agent wrestling with Intune. You get one console, one ticket history, and a Microsoft CSP partner accountable for both halves.

Cross-OS coverage from day one

Windows is the easy part. The providers who struggle are the ones who treat Mac and Linux as exceptions. Defender covers all three properly, and mixed fleets are ordinary work for us across the 800 plus systems under management: finance on Windows, creative teams on Mac, engineering on Linux. Our Jamf partnership sits behind the Apple side.

Tuned to the threats that actually land

Detection and attack-surface reduction rules tuned for the patterns that open most US incidents: credential-stealing malware, business email compromise pivoting to endpoints, and the ransomware precursors that arrive through phishing and unpatched applications. Tuning based on what we see across managed tenants, not a default rule set left as shipped.

Monthly compliance reporting

Monthly reporting that an assessor can use directly: how far behind patching is, which devices detection actually reaches, encryption state, and where configuration has drifted. The same evidence answers SOC 2, HIPAA, CMMC, and NIST 800-171 questions, and it fills in the endpoint section of your insurance renewal without a scramble.

Endpoint security profiles

Six business profiles where endpoint security is non-negotiable.

Office knowledge workers

Distributed staff, personal devices in the mix, and Microsoft 365 as the place the work actually happens.

Financial services and fintech

Customer data sensitivity, GLBA and FTC Safeguards exposure, NYDFS Part 500 where licensed in New York. Endpoint hardening is a baseline examiner expectation.

Healthcare and clinical staff

Patient data, EMR access, HIPAA Security Rule safeguards. Strict endpoint controls without breaking clinical workflow speed.

Retail and POS endpoints

Point-of-sale terminals and shared back-office machines have to be locked down without slowing a queue at the register.

Manufacturing engineers

Production-floor laptops connecting to OT systems need behavior-based detection plus network segmentation. CMMC applies where defense contracts do.

Education devices

Thousands of student and faculty machines across several platforms, plus FERPA obligations on what those devices can reach.

Endpoint security stack comparison

Four endpoint security stacks compared.

Signature-based detection
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)
No EDR, no MDM
Behavioral EDR detection
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)
No EDR, no MDM
Device configuration management
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)Need separate MDM
No EDR, no MDM
Patch automation
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)Need separate tool
No EDR, no MDM
Conditional access integration
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)Need separate IAM
No EDR, no MDM
Cross-OS (Win, Mac, Linux, iOS, Android)
GR Defender + Intune
Legacy AV onlyWin-only often
Third-party EDR (CrowdStrike, SentinelOne)
No EDR, no MDM
BYOD without full enrollment
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)Variable
No EDR, no MDM
Native Microsoft tenant integration
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)
No EDR, no MDM
Licensing overlap with M365 you already own
GR Defender + IntuneIncluded in E5 / Business Premium
Legacy AV onlySeparate purchase
Third-party EDR (CrowdStrike, SentinelOne)Separate purchase
No EDR, no MDMNone, high incident exposure
Single console for SOC
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)Separate from M365 events
No EDR, no MDM
Feature
GR Defender + Intune
Legacy AV only
Third-party EDR (CrowdStrike, SentinelOne)
No EDR, no MDM
Signature-based detection
Behavioral EDR detection
Device configuration management
Need separate MDM
Patch automation
Need separate tool
Conditional access integration
Need separate IAM
Cross-OS (Win, Mac, Linux, iOS, Android)
Win-only often
BYOD without full enrollment
Variable
Native Microsoft tenant integration
Licensing overlap with M365 you already own
Included in E5 / Business PremiumSeparate purchaseSeparate purchaseNone, high incident exposure
Single console for SOC
Separate from M365 events
How endpoint security ramps

From baseline to full coverage in 6 weeks.

Three things go wrong on endpoint rollouts, and all three are avoidable. Agents fight each other and devices slow to a crawl. Encryption gets enabled before recovery keys are escrowed and someone loses a machine. Ports lock overnight with no warning and the help desk drowns. The sequence below exists to prevent each of them.
  1. 1

    Baseline assessment

    1 week

    We inventory what is actually out there: which platforms, which antivirus product, what is enrolled and what is not, how far behind patching has slipped, whether disks are encrypted, and how personal devices are being used. Gaps are ranked by how easily they could be exploited, not alphabetically.

  2. 2

    Defender and Intune deployment

    2 weeks

    Defender goes out to every device in scope while the incumbent antivirus is retired batch by batch, never both active at once. Company-owned machines enroll into Intune. The opening baselines land: disk encryption, lock timers, and removable-media policy on the groups that handle regulated data.

  3. 3

    Conditional access and tuning

    2 weeks

    Conditional access switches on, so compliance becomes a condition of reaching Microsoft 365 and your business applications. Detection noise is tuned down against real traffic. Staff get a short explanation and a two-minute video before anything changes on their screen.

  4. 4

    Steady state operations

    Continuous

    Endpoint signals flow into Sentinel and analysts work them at any hour. Patching settles into its monthly rhythm, compliance reporting arrives on schedule, and every quarter we sit down over what changed in the threat landscape and what it means for your fleet.

Endpoint security FAQ

What IT and security leads ask before engaging.

For most US businesses, yes. Defender for Endpoint Plan 2 performs alongside CrowdStrike and SentinelOne in independent evaluations such as the MITRE ATT&CK evaluations. The decision usually comes down to licensing efficiency (Defender is included with M365 E5 and Business Premium, the others are separate purchases) and integration depth with M365.

Defender supports Windows, macOS, Linux, iOS, and Android. Intune enrolls all five for management. We run mixed fleets daily, where the design team is Mac, the dev team is Linux, and the finance team is Windows, and our Apple Jamf partnership covers the estates where Jamf runs the Mac side instead.

Full EDR arrives with Microsoft 365 E5, with the E5 Security add-on, or bought on its own. Smaller companies usually already have Defender for Business through Business Premium, which covers most of the same ground. Intune ships with E3, E5, and Business Premium. Scoping includes a licensing review, and more often than not the entitlement is already sitting in the tenant unused.

Only if both are left running in active mode, which is exactly the mistake we design around. Defender goes on in passive mode first, the old product is removed in batches, and only then is Defender promoted. Every batch boundary is a clean rollback point, so a bad surprise is contained to one group rather than the whole company.

Yes, via app-protection policies. Personal devices do not need full MDM enrollment. Corporate data is containerized within M365 apps; outside the app boundary personal photos, contacts, and apps are untouched. This is the model we recommend for BYOD, and it is also the one employees accept, which matters as much as the technology.

Yes. Compliance becomes a precondition for reaching Microsoft 365 and your business applications. A machine that fails the check is either blocked or dropped into a browser-only session where nothing is cached locally, which is the usual answer for contractors. Guests and outside collaborators fall under the same rules.

Keys are escrowed to Entra ID at the moment encryption is enabled, never held on the device or in a spreadsheet. The help desk pulls the key and walks the user through it. We rehearse that retrieval every quarter, because the failure we see most often is not encryption itself but a company discovering, during an actual incident, that nobody can find the key.

It addresses the endpoint questions directly. Insurance applications now routinely ask whether EDR is deployed on all endpoints and servers, whether MFA is enforced, whether devices are encrypted, and how quickly critical patches land. This operating model produces a yes with evidence for each, and the monthly compliance report is the artifact you attach at renewal. Whether the answers change your terms is between you and your carrier.

The controls here implement a substantial slice of each: encryption at rest, access control tied to device state, malware defense, patching discipline, and audit evidence. For HIPAA that maps onto Security Rule technical safeguards; for SOC 2 onto the security trust criteria; for CMMC and NIST 800-171 onto the system-protection and access-control families. We provide the configuration and the evidence; your assessor or compliance advisor owns the interpretation.

Endpoint security is a remote-native discipline: deployment, policy, investigation, isolation, and remediation all run through Defender and Intune from anywhere. A compromised device gets isolated from the network within minutes through the console regardless of where it or we sit. Managed clients get P1 response within 5 minutes, with 24/7 coverage.

A few of them are noticeable: an extra prompt at boot, screens locking sooner, a USB port that stops working for the finance team, an occasional sign-in challenge. We tell people before it happens, write down why, and brief the help desk so the first call gets a real answer. Two weeks in, nobody mentions it any more.

Scoped per engagement and quoted on request, sized by device count, OS mix, and whether steady-state operations stay with us. The first step is a one-week endpoint audit that produces a written gap report either way, so you know what you are buying before you buy it.
Related cybersecurity services

Services that pair with endpoint security.

Microsoft Defender

Full Defender XDR stack: endpoint, email, identity, cloud apps.

Learn more

Microsoft Intune

Device management and configuration enforcement.

Learn more

SOC-as-a-Service

24/7 monitoring that ingests Defender XDR signals.

Learn more
Endpoint security, ready when you are

Ask for the endpoint review and you get the gap report in writing.

One week of work across all six controls. You receive a written assessment, a remediation order that reflects real risk rather than product categories, and a note on the licensing you already own but are not using.

Book an endpoint auditSee managed security

Related Services

Explore more solutions that work great with this service

Microsoft Defender for Endpoint Services

EDR plan selection, onboarding and zero-gap AV migration

Learn more

Microsoft Defender

Advanced endpoint and email threat protection

Learn more

Microsoft Intune

Device management and endpoint security

Learn more

SOC-as-a-Service

24/7 security operations delivered as a service

Learn more

Managed Security Services

Managed security services (MSS) for US businesses, delivered remotely

Learn more

Microsoft Purview Endpoint DLP

Endpoint data loss prevention for US organizations: device onboarding

Learn more
GR IT SERVICES

IT services for US businesses,
delivering enterprise-grade solutions
remotely, coast to coast.

Microsoft CSP PartnerApple Jamf PartnerCISGuard

Microsoft 365

  • Microsoft 365 Administration
  • M365 Reporting & Auditing
  • Microsoft 365 Licensing
  • Microsoft Copilot
  • Microsoft 365 Apps
  • Windows 365 Cloud PC
  • Microsoft SharePoint
  • Outlook & Exchange

Security

  • Microsoft Defender
  • Microsoft Purview
  • Microsoft Intune
  • Microsoft Entra
  • Compliance Manager
  • Cybersecurity Audits
  • Copilot for Security
  • Microsoft Sentinel
  • Microsoft Priva

Infrastructure

  • Google Workspace
  • Cloud Migration Services
  • Data Analytics & BI
  • Active Directory
  • Server Management
  • Apple Business
  • Apple Jamf Pro
  • IP Telephone
  • Data Backup
  • Website Development

IT Services

  • Managed IT Services
  • IT Support USA
  • IT AMC USA
  • New Office IT Setup
  • IT Relocation
  • Remote IT Support
  • On-Call IT Support
  • Startup IT Business Kit
  • Disaster Recovery & BC

Company

  • About Us
  • Careers
  • Contact
  • Blog

Contact

  • hello@gritservices.io
  • gritservices.io

© 2026 GR IT Services. All rights reserved.

Privacy PolicyTerms of UseCookie PolicyCCPA/CPRA