Beyond basic antivirus

Traditional antivirus software — which detected known malware by matching it against a signature database — is no longer sufficient protection for a business. Modern threats (ransomware, fileless attacks, zero-day exploits) use techniques that signature-based detection misses.

Modern endpoint protection adds behavioral analysis (detecting suspicious activity patterns regardless of whether the specific malware is known), attack surface reduction, and rollback capabilities. The terminology in the industry: basic antivirus vs. endpoint protection platform (EPP) vs. endpoint detection and response (EDR).

For most small businesses, an EPP sits in the right middle ground — meaningfully better than basic antivirus without the cost and complexity of full EDR.

What’s adequate for a small business

Minimum baseline: Microsoft Defender, which is built into Windows 10 and 11, is a legitimate free option that has improved significantly in recent years. If your budget is genuinely zero, Defender with regular updates and good user practices is far better than nothing.

Good mid-tier option: Malwarebytes for Teams ($4/device/month) or Bitdefender GravityZone ($3–5/device/month). These add behavioral detection, centralized management, and better reporting than Defender.

Strong small business option: SentinelOne Singularity ($5–8/device/month) or CrowdStrike Falcon Go ($8/device/month). These are EDR-lite platforms used by serious small businesses and provide detection and rollback capabilities that are meaningfully better than the mid-tier options.

What matters for choosing

  • Centralized management: Can you see the status of all devices and push updates from a single console? For 5+ devices, this is important.
  • Behavioral detection: Does it detect threats based on behavior, not just signatures?
  • Ransomware rollback: Can it automatically roll back file changes if ransomware activity is detected? This feature alone is worth significant premium.
  • False positive rate: Some aggressive security tools generate enough false positives to disrupt legitimate work. Check reviews from businesses similar to yours.