PII vs PHI: Differences & How to Secure

Written by Sean Blanton on December 11, 2024

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In healthcare IT, data compliance is crucial not only for meeting regulations but also for protecting patient privacy and maintaining trust. 

As the amount of sensitive information grows, it’s important to know how to identify and secure Personally Identifiable Information (PII) and Protected Health Information (PHI). 

This blog post will discuss the differences between PII and PHI, their compliance requirements, and practical ways to secure this information.

Summary & Key Takeaways

  • Personally Identifiable Information (PII) refers to data that can identify an individual, like their name or Social Security number.
  • Protected Health Information (PHI) involves health-related data linked to an individual, such as medical records or insurance details.
  • The most significant difference between PII and PHI is that PHI relates specifically to health information.
  • Compliance requirements for PII and PHI vary across regulations like HIPAA, CCPA, and GDPR.
  • Failing to comply with these regulations can lead to significant fines and legal consequences.

Understanding PII and PHI

The distinction between PII and PHI is crucial for data compliance in healthcare. These terms are often used interchangeably, but they have distinct definitions and implications.

Definition of Personally Identifiable Information (PII)

PII encompasses any data that can be used to identify a specific individual. This includes items like a person’s name, address, phone number, or Social Security number. In the healthcare sector, PII can extend to billing information or any identifiers linked to medical services.

Recognizing PII is crucial for setting up effective security measures. Healthcare IT professionals must protect PII across various systems and processes, ensuring personal information stays confidential and safe from unauthorized access.

Definition of Protected Health Information (PHI)

PHI is a subset of PII specific to healthcare. It includes any health-related information that can be linked to a specific individual. This could involve medical records, lab results, health insurance data, or even discussions between healthcare providers about patient care.

PHI is subject to strict regulations due to its sensitive nature. Healthcare organizations must implement rigorous controls to protect PHI and ensure compliance with healthcare-specific regulations like HIPAA. Maintaining the confidentiality and integrity of PHI is not just a compliance issue; it’s a fundamental aspect of patient care and trust.

PII vs PHI Key Differences

While PII is broad and can apply to any personal data, PHI specifically relates to health information. Understanding this distinction is vital for compliance and data protection strategies in healthcare.

The key difference is context. PII could include any personal identifier, but when that information is involved in a healthcare setting or tied to medical data, it becomes PHI. This distinction guides how data is treated under regulations and impacts the security measures required to protect it.

Compliance Considerations

Data compliance is a critical function in healthcare IT, requiring a nuanced understanding of regulations and their implications for PII and PHI.

PII vs. PHI Compliance Requirements

Healthcare IT professionals must navigate a complex landscape of compliance standards. Each regulation has unique requirements regarding the handling of PII and PHI:

  • HIPAA (Health Insurance Portability and Accountability Act) focuses on PHI and mandates strict controls to protect patient health information.
  • CCPA (California Consumer Privacy Act) regulates PII, giving consumers more control over their personal data.
  • GDPR (General Data Protection Regulation) applies to PII and PHI within the EU, emphasizing data protection and privacy.

Understanding these requirements is crucial for compliance specialists, as non-compliance can result in significant legal and financial repercussions.

Legal Implications of Data Mishandling

Mishandling PII or PHI can have severe legal consequences. Healthcare organizations face steep fines, legal action, and reputational damage if they fail to comply with data protection regulations. Beyond the immediate financial impact, non-compliance can erode patient trust and hinder an organization’s ability to operate effectively.

For healthcare IT professionals, understanding the legal landscape and proactively implementing compliance measures is essential. This involves continuous monitoring, risk assessment, and adapting security protocols to evolving regulatory standards.

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How to Secure PII and PHI

Securing PII and PHI requires a comprehensive approach that encompasses technology, processes, and people. Here are key strategies to protect sensitive data in healthcare IT:

Implement robust identity and access management (IAM) systems to control who can access PII and PHI. Ensure that only authorized personnel have access and that access is monitored and logged for auditing purposes.

Use encryption to protect data at rest and in transit. Encryption ensures that even if data is intercepted, it remains unreadable without the appropriate decryption key. This is vital for safeguarding PHI, which often traverses multiple systems and networks.

Regularly update and patch systems to address vulnerabilities that could be exploited by cyber attackers. Ensuring that all software and systems are up to date minimizes the risk of breaches and data leaks.

Simplify Compliance With JumpCloud

JumpCloud offers a unified open directory platform that simplifies compliance by centralizing identity, access, and cross-OS device management. JumpCloud provides the tools healthcare IT professionals need to secure PII and PHI effectively.

JumpCloud’s centralized approach allows organizations to monitor and control access to sensitive data from a single platform. This not only streamlines compliance efforts but also enhances security by providing a comprehensive view of access points and potential vulnerabilities.

By implementing JumpCloud, healthcare organizations can ensure that they meet compliance standards while maintaining a strong security posture. JumpCloud aids in automating security tasks, reducing the administrative burden on IT teams, and enabling them to focus on other critical aspects of data management.

Frequently Asked Questions

Are PHI and PII the same thing?

No, PHI is a subset of PII specific to healthcare, involving health-related information linked to an individual.

Is PII a subset of PHI?

No, PII is broader and includes any personal identifier. PHI specifically relates to health information within a healthcare context.

What is considered PII?

PII includes any information that can identify an individual, such as names, addresses, phone numbers, and Social Security numbers.


Securing PII and PHI is paramount for healthcare IT professionals and compliance specialists. By understanding the differences between these types of information and implementing robust compliance strategies, organizations can protect sensitive data and maintain regulatory compliance.

Leveraging platforms like JumpCloud can simplify these efforts, ensuring that data security remains a top priority. If you want to learn more, contact our sales team, try a guided simulation or access extra resources linked below to better understand data compliance in healthcare IT.

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Need additional help or guidance? Contact the JumpCloud Sales team to discuss your questions about the platform.

Sean Blanton

Sean Blanton is the Director of Content at JumpCloud and has spent the past decade in the wide world of security, networking and IT and Infosec administration. When not at work Sean enjoys spending time with his young kids and geeking out on table top games.

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