Email Security & Phishing Protection

How most medical practice breaches actually start.

Phishing drives the majority of healthcare breaches. Industry breach reports consistently show email-initiated attacks as the most common initial access vector — credential phishing (user enters password on a fake login page), malicious attachments (document macros or executables), and business email compromise (attacker impersonates a trusted contact). Medical practice staff face the same email attacks as any organization — with the added complication that healthcare staff are often busy, under time pressure, and less trained in security than corporate office workers.

Modern phishing is sophisticated. Attackers register lookalike domains, impersonate specific vendors or executives the practice works with, and craft messages using AI tools that are grammatically indistinguishable from legitimate communication. Generic "watch out for phishing" user training doesn't stop sophisticated attacks — technical controls that catch phishing before it reaches users are essential.

Email security has to work at multiple layers. Domain authentication prevents domain spoofing. Advanced threat protection detects malicious content in messages and attachments. User-awareness training reduces successful social engineering. No single layer catches everything; layered defense makes the practice a harder target.

What we deploy for medical practice email security.

1. Advanced threat protection (ATP / Defender for Office 365)

Microsoft Defender for Office 365, Barracuda Email Security, Proofpoint, or equivalent — sandbox analysis of attachments before delivery, URL rewriting and click-time protection, advanced anti-phishing that uses machine learning to detect impersonation patterns. Catches threats that standard spam filters miss.

2. Domain authentication (SPF, DKIM, DMARC)

SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance) collectively prevent attackers from spoofing your practice's email domain. DMARC in particular is widely missing at medical practices — its absence makes domain impersonation trivially easy for attackers.

3. Business email compromise (BEC) protection

Specific protections against BEC patterns — impersonation of executives or vendors, wire transfer fraud, invoice fraud, payroll diversion. Tools look for display-name impersonation, lookalike domains, unusual sending patterns, and specific BEC linguistic markers.

4. HIPAA-compliant email for external patient communication

Standard email is NOT HIPAA-compliant for PHI transmission. Encrypted email (Virtru, Paubox, ProtonMail Business, or Microsoft 365 Message Encryption) is required when sending PHI to patients or external parties. Configuration and user training on when encryption is required is standard engagement scope.

5. User awareness training

Simulated phishing campaigns, structured security awareness training (KnowBe4, Proofpoint Security Awareness, others), and ongoing testing reduce successful social engineering. See our security training service for the training layer specifically.