Affordable Endpoint Detection and Response (EDR) for Small Businesses: A Practical Buyer's Guide
Small businesses can get effective EDR protection for $3-$15 per endpoint per month. Leading options include CrowdStrike Falcon Go, SentinelOne Singularity, and Malwarebytes EDR. For SOC 2 compliance, choose a vendor with audit logging, threat telemetry export, and documented incident response workflows.
What is the difference between EDR and traditional antivirus for a small business?
Traditional antivirus relies on signature databases to identify known malware files. EDR monitors endpoint behavior in real time - tracking process execution, network connections, and file modifications - to detect threats that have no prior signature. For small businesses, EDR catches modern attacks like fileless malware and living-off-the-land techniques that antivirus misses. Most EDR platforms also provide a forensic record of what happened during an incident, which is essential for SOC 2 audit evidence.
How many endpoints does my small business need to license for EDR?
You should license every device that accesses company data or systems: employee laptops, desktops, servers (including cloud VMs), and any persistent remote access points. Mobile devices depend on the vendor's mobile threat defense (MTD) offering, which is sometimes separate. A 50-person company typically needs 55-75 licenses once servers and shared workstations are included. Confirm with your vendor whether servers count as separate license types, as some vendors price server agents higher than workstation agents.
Is EDR required for SOC 2 compliance?
SOC 2 does not enumerate specific tools, but it does require demonstrable controls for malicious software prevention (CC6.8) and security event monitoring (CC7.2). In practice, auditors expect to see an EDR or equivalent endpoint security solution that generates verifiable detection and response records. Companies that rely solely on traditional antivirus often struggle to satisfy CC7.2 because they lack sufficient behavioral telemetry. EDR is the most auditor-accepted mechanism for satisfying these controls at the SMB scale.
Can a small business manage EDR without a dedicated security team?
Yes, with the right vendor tier. Managed EDR options - such as Huntress or SentinelOne's MDR service - include vendor-side analysts who monitor alerts 24/7 and notify your team only when action is required. For SMBs without a dedicated security operations center (SOC), managed EDR effectively closes the staffing gap. Self-managed EDR (such as Falcon Go at the base tier) requires someone to review the console daily and respond to high-priority alerts, which is feasible for an IT generalist spending 30-60 minutes per day.
What log retention period does EDR need to support SOC 2?
SOC 2 does not specify a minimum retention period, but AICPA guidance and common auditor expectations point to 90 days of readily accessible logs and up to 12 months of archived logs for Type II audit periods. Your EDR platform should allow you to configure log retention to at least 90 days within the console. If your EDR exports to a SIEM, retention policy is managed there. Confirm retention defaults before purchasing, as some lower-cost tiers retain telemetry for only 7-30 days.
How long does it take to deploy EDR across a small business environment?
For a company with 20-100 endpoints, a cloud-managed EDR deployment typically takes one to three business days. Deployment involves installing a lightweight agent on each device, which can be pushed via Group Policy (Windows), MDM (macOS/mobile), or manual installation. Most SMB-focused vendors provide step-by-step onboarding documentation and, at mid-tier pricing, dedicated onboarding support. Initial policy configuration and tuning to reduce false positives typically takes an additional one to two weeks of monitoring.
What should I ask an EDR vendor before signing a contract?
Ask for: (1) a copy of their own SOC 2 Type II report to confirm they protect your data; (2) documentation of how their platform maps to SOC 2 Common Criteria controls; (3) log retention defaults and maximum configurable retention; (4) whether managed detection is included or costs extra; (5) how many days until you receive your first alert during a test or onboarding period; (6) contract length and whether monthly billing is available; and (7) what happens to your data if you cancel the contract.