What are Electronic Health or Medical Records (EHR or EMR)?

Electronic Health Records (EHR) and Electronic Medical Records (EMR) represent digitized versions of patient health information—everything from diagnoses and medications to lab results and treatment histories.

While the terms are often used interchangeably, EMRs typically refer to records within a single healthcare organization, whereas EHRs are designed to be shared across different healthcare providers and systems.

From a cybersecurity standpoint, these records are among the most sensitive data types that exist. They contain not just medical information but also social security numbers, insurance details, and other personal identifiers that make them exceptionally valuable to cybercriminals.

The healthcare sector faces stringent regulatory requirements around EHR and EMR protection, including HIPAA in the United States and various provincial health information acts in Canada. These regulations mandate specific technical safeguards, access controls, and breach notification procedures. What makes securing this data particularly challenging is that healthcare environments often need rapid, sometimes urgent access to patient records—meaning security controls can't impede clinical workflows. The stakes are high: breaches can expose millions of patient records at once, and unlike credit card numbers, personal health information can't simply be reissued.

The push toward digitizing health records gained momentum in the 1960s and 70s when hospitals began experimenting with computerized patient information systems. Early systems were primarily administrative, tracking billing and scheduling rather than clinical data. The real shift happened in the 1990s and early 2000s as computing power increased and healthcare organizations recognized the potential for electronic systems to reduce errors and improve care coordination. The US government accelerated adoption through the Health Information Technology for Economic and Clinical Health (HITECH) Act of 2009, which provided financial incentives for healthcare providers to implement certified EHR systems. Canada followed similar trajectories through various provincial and federal initiatives.

As adoption spread, so did awareness of the security risks. Early healthcare IT systems weren't designed with robust security as a priority—they evolved from closed, internal networks where the primary concern was functionality, not protecting against external threats.

The transition from paper to digital created new vulnerabilities, and it took several high-profile breaches in the 2010s before the healthcare industry began treating cybersecurity as a critical operational priority rather than just a compliance checkbox.

Healthcare data breaches have become alarmingly common, with medical records fetching high prices on dark web markets—often more than financial credentials. This is because health data enables identity theft, insurance fraud, and even blackmail in ways that other personal information doesn't. The 2015 Anthem breach exposed nearly 80 million records, and large-scale attacks have continued since.

What makes healthcare particularly vulnerable is the combination of valuable data, legacy systems that are difficult to patch or upgrade, and a workforce focused on patient care rather than security protocols. Medical devices connected to networks add another layer of complexity—insulin pumps, imaging equipment, and patient monitors that may run outdated operating systems and can't be easily secured without disrupting patient care.

Ransomware attacks on healthcare facilities can be life-threatening, forcing emergency room diversions or delaying critical procedures. The COVID-19 pandemic intensified these risks as healthcare organizations rapidly implemented telehealth services and remote access solutions, sometimes without adequate security review. Regulatory scrutiny has increased accordingly, with substantial fines for organizations that fail to adequately protect patient data or don't properly report breaches.

Plurilock understands that healthcare security requires balancing stringent protection with clinical accessibility. Our team includes practitioners who've secured some of the most sensitive government and commercial environments, and we bring that expertise to healthcare organizations facing complex compliance requirements and evolving threats.

We help healthcare providers implement defense-in-depth strategies that protect patient data without impeding care delivery—from zero-trust architectures to robust identity and access management.

Our approach goes beyond checking compliance boxes to actually securing your environment against real-world attacks. Learn more about our data protection services designed for organizations handling highly sensitive information.