Endpoint Protection

What's wrong with legacy antivirus in medical environments.

Traditional antivirus relies on signatures — known patterns of known malware. Modern attacks increasingly don't use signature-detectable malware at all. Attackers use legitimate system tools maliciously ("living off the land"), steal credentials and access systems with stolen logins (no malware needed), and deploy zero-day exploits (no signature exists yet). Signature-based tools miss these patterns entirely.

Medical practice attacks specifically follow patterns traditional AV misses: phishing-driven credential theft, ransomware actors dwelling in the environment for days or weeks before encryption, lateral movement using stolen administrator credentials, and slow data exfiltration through legitimate-looking traffic. Traditional AV catches the ransomware encryption binary — by then the practice is already compromised.

Modern EDR (Endpoint Detection and Response) watches behavior patterns rather than signatures. Unusual process chains, credential theft indicators, lateral movement attempts, ransomware pre-staging behavior, and data exfiltration patterns trigger detection regardless of whether traditional malware is involved. For medical practices facing modern threats, EDR is not an upgrade over antivirus — it's a requirement.

Why deployment matters as much as product selection.

Default EDR policies produce too many false positives in clinical environments. Medical applications do unusual things — EHR clients spawn many processes, medical device software runs unsigned binaries, clinical imaging applications load dynamic libraries in patterns that look like malware behavior. Out-of-the-box policies flag clinical applications as suspicious, generating alert noise that buries real threats and breaks clinical workflow.

Healthcare-tuned policies solve this. Our deployments configure platform-specific exclusions for known-good healthcare applications (EHR clients, imaging platforms, specialty device software), threshold calibration against actual clinical environment noise, and response actions that consider clinical operational context (don't auto-isolate a workstation during a patient encounter without documented override protocol). This tuning is what distinguishes good EDR deployment from shelf-ware.

Ongoing tuning is required. New medical applications get added regularly; new clinical workflows emerge; new attack variants appear. EDR policies need quarterly review and adjustment. This is part of standard managed threat detection scope for clients on managed services.

What we deploy and why.

Our primary platforms: CrowdStrike Falcon (industry-leading threat intelligence, cloud-native architecture, broad ecosystem integration), SentinelOne (AI-driven behavioral detection, autonomous response, ransomware rollback), and Microsoft Defender for Endpoint (integrated with Microsoft 365, competitive capability, favorable licensing for M365 customers).

Platform selection depends on practice specifics — existing security ecosystem, M365 licensing, budget, feature needs, and operational preferences. All three are capable; deployment quality matters more than platform choice for most medical practices.