TL;DR

Your business runs on endpoints, and every unpatched laptop or unmanaged phone is an open door. This guide gives you a concrete checklist for deploying endpoint detection and response (EDR), locking down patch management, and rolling out mobile device management (MDM) across your entire fleet. You can start implementing these steps today and have a baseline level of protection across every device by the end of the week.

The Endpoint Problem Nobody Talks About

Most small businesses buy laptops, hand them out, and hope for the best. They install whatever antivirus came free with the machine and call it a day. That approach stopped working five years ago. Modern ransomware does not care about signature-based antivirus, it exploits unpatched software and weak device configurations. The ASD Essential Eight lists three controls directly relevant here: patch applications, patch operating systems, and user application hardening. If you are doing none of these systematically, every endpoint in your business is a liability. The fix is three layers: EDR to detect threats, automated patching to close vulnerabilities, and MDM to enforce policy on every device. Let us walk through each.

Layer 1: Deploy EDR or XDR on Every Endpoint

Antivirus scans files against known signatures. EDR watches behavior: process chains, network connections, file writes, credential access patterns. When ransomware starts encrypting files, EDR sees the behavior and kills the process, even if the malware itself is brand new. XDR extends that visibility across endpoints, email, cloud apps, and network traffic.

Which Tool Fits Your Business

For small businesses with fewer than 100 endpoints, CrowdStrike Falcon Go costs roughly $7.99 per device per month. It gives you next-generation antivirus, USB device control, and mobile protection in a single lightweight agent. You install it and it works, no server infrastructure required.

If you want detection and response without a dedicated security team, SentinelOne Singularity Complete sits around $6 to $12 per endpoint per month depending on volume. It includes automated response actions so threats get contained without waiting for human intervention.

Already on Microsoft 365? Microsoft Defender for Business is included with Business Premium ($22 per user per month) and covers up to 300 employees. If you are already paying for the suite, the endpoint protection is already there, you just need to enable it.

Quick-Win EDR Checklist

  1. Audit every device running in your business. You cannot protect what you do not know about. Run an asset inventory this afternoon.
  2. Pick one of the three options above based on your stack and deploy the agent to every laptop, desktop, and server.
  3. Enable automated remediation. Silent alert-only mode means threats sit unaddressed. Configure the EDR to kill malicious processes and quarantine affected devices automatically.
  4. Set a weekly 15-minute review of the console. Look for unresolved alerts, unmanaged devices, and policy violations.

Cost range: $3 to $15 per endpoint per month, depending on tier and vendor.

Layer 2: Automate Patch Management or Get Hit

The Essential Eight sets clear timelines. Maturity Level One requires operating system patches within one month of release and application patches within two weeks for critical vulnerabilities. Maturity Level Two pulls those timelines to two weeks and 48 hours respectively. Most SMBs are not hitting either target because they patch manually, which means they forget.

Tools That Do the Work for You

Automox is a cloud-native patching platform that covers Windows, macOS, and Linux from a single console. Pricing runs roughly $2 to $5 per endpoint per month. You set a policy (patch OS within 7 days, patch browsers within 48 hours) and Automox handles the rest. It also handles third-party applications like Adobe Reader, Zoom, and Chrome, which is where most real-world exploits land.

PDQ Deploy and PDQ Inventory suit Windows-heavy shops that want a straightforward, one-time-cost model. PDQ Deploy is about $1,500 per year for the enterprise license, not per-endpoint pricing. It excels at pushing out software updates and configuration changes across a fleet fast.

Microsoft Intune includes patch management as part of its device management stack, but the patching engine focuses on Windows and Microsoft applications. For third-party apps, pair Intune with something like Patch My PC or a third-party catalog.

Quick-Win Patching Checklist

  1. Enable automatic updates for operating systems on every endpoint. This is a checkbox in Windows Update and macOS Software Update. Do it now.
  2. Deploy a third-party patching tool (Automox or PDQ) to cover browsers, PDF readers, conferencing apps, and runtime engines.
  3. Set enforcement deadlines. A patch that sits pending for two weeks is the same as no patch at all. Configure maximum deferral windows.
  4. Run a verification scan every Monday morning. How many endpoints are fully patched? Fix the outliers immediately.

Cost: $2 to $5 per endpoint per month, or approximately $1,500 per year for a flat-fee tool covering a typical SMB fleet.

Layer 3: Roll Out MDM for Every Mobile and Remote Device

Your employees check email on personal phones. They access SharePoint from iPads. They take company laptops home and connect to coffee shop WiFi. Without MDM, you have no idea what state those devices are in and no way to enforce security policy.

Enforce Policy, Not Trust

MDM lets you require disk encryption, enforce screen lock with a minimum passcode length, block installation of unapproved apps, and remotely wipe a lost or stolen device. These are not optional controls. A single lost phone with cached email credentials can expose your entire client list.

Microsoft Intune is the default choice if you run a Microsoft 365 shop. It is included with Business Premium and integrates directly with Defender for Endpoint. You set compliance policies in Intune, and Defender enforces them. For Apple-heavy environments, Jamf Pro covers macOS and iOS with deeper management capabilities than Intune offers for those platforms. Pricing runs roughly $3 to $7 per device per month depending on license tier.

Quick-Win MDM Checklist

  1. Enroll every company-owned device in an MDM platform this week. Intune for Microsoft shops, Jamf for Apple-first environments.
  2. Require disk encryption on all laptops. Both BitLocker (Windows) and FileVault (macOS) are built in. Use MDM to verify encryption status and alert on non-compliant devices.
  3. Enforce a minimum 6-digit passcode with a 5-minute auto-lock timeout. No exceptions for executives.
  4. Block installation of apps from outside the managed app store. Sideloaded apps bypass every security control you just configured.
  5. Configure remote wipe capability and test it on one device to confirm it works before you need it in a real incident.

Cost: $3 to $7 per device per month, or included with Microsoft 365 Business Premium at $22 per user per month.

Hardening the Operating System: CIS Benchmarks Made Practical

The Center for Internet Security publishes free hardening guides (CIS Benchmarks) for every major operating system. They cover hundreds of settings, but you do not need all of them on day one. Start with the Level 1 benchmarks, which give you high-impact wins without breaking business applications.

  1. Remove local administrator rights from daily-use accounts. Users run as standard users. Admins use a separate account only for system changes.
  2. Disable unnecessary services. If nobody in the business uses PowerShell remoting or Remote Desktop, turn them off.
  3. Configure Windows Defender Firewall on all endpoints with default-deny inbound rules. Allow only ports your business applications actually need.
  4. Enable credential guard and exploit protection where supported. Both are built into Windows 10 and 11 Pro and Enterprise.

These four settings prevent the most common attack paths: credential theft, lateral movement, and unauthenticated network access. They cost nothing except the time to configure them once via Group Policy or Intune configuration profiles.

FAQ

Q: Can I skip EDR and just use the free antivirus built into Windows?

A: Defender Antivirus (the free version) is signature-based. It catches known malware. It will not catch a new ransomware variant, a fileless attack in PowerShell, or an attacker using legitimate admin tools to move laterally. EDR adds behavioral detection that covers those gaps. If your business stores customer data, the $8 per endpoint per month is cheaper than a breach notification.

Q: We have 15 employees and no IT staff. Is this realistic?

A: Yes. CrowdStrike Falcon Go or Microsoft Defender for Business deploy in under an hour. Automox sets up in 30 minutes. Intune enrollment for 15 devices is an afternoon of work. None of these tools require a server room or a dedicated security engineer. The cloud consoles handle the heavy lifting.

Q: Do we really need MDM if everyone already has antivirus?

A: Antivirus on a laptop stops malware. It does not enforce screen lock, require encryption, or let you wipe a stolen phone. MDM covers the device itself. Without it, a lost phone with an unlocked screen gives an attacker direct access to email, files, and any cloud apps your employee is signed into.

Q: How does this map to the ASD Essential Eight?

A: Automated patching directly satisfies "Patch Applications" and "Patch Operating Systems." User application hardening, such as removing local admin rights and blocking unapproved app installations, satisfies "User Application Hardening." Enabling Microsoft Defender or deploying a third-party EDR tool addresses multiple strategies, including application control and endpoint detection. CIS Benchmarks provide the technical implementation detail for OS hardening required at higher maturity levels.

Conclusion

Endpoint hardening is not a 12-month project. The core steps (deploy EDR, automate patching, enroll devices in MDM, and lock down OS configuration) can be done this week for most small businesses. The tools are mature, the pricing is transparent at $3 to $15 per endpoint per month, and the alternative is waiting until an incident forces you to act.

Start with the asset inventory today. Deploy your chosen EDR tomorrow. Configure automated patching on Thursday. Enroll devices in MDM by Friday. By Monday, you will have a hardened fleet that can detect threats, patch itself on schedule, and enforce security policy on every device.

Need help scoping this for your specific business? Visit consult.lil.business for a free cybersecurity assessment. We will look at what you have now, map the gaps against the Essential Eight, and give you a concrete action plan with specific tools and pricing for your environment.

References

  1. ACSC Essential Eight Maturity Model
  2. CIS Benchmarks for Operating System Hardening
  3. CrowdStrike Falcon Go for SMBs: Pricing and Features
  4. Microsoft Defender for Business: Endpoint Security for SMBs
  5. ASD Blueprint: Patch Operating Systems

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