PII is information that, when used alone or with other relevant data, can identify an individual. This includes everything from your full name and address to your IP address and biometric data.
Personally Identifiable Information (PII) is any data that can be used to distinguish or trace an individual’s identity, either alone or when combined with other information that is linked or linkable to a specific individual. In essence, it’s the data that makes you, *you*.
PII is broadly categorized into two types: Direct Identifiers and Indirect Identifiers.
Information that can *immediately* identify an individual and cause significant harm if leaked.
Information that, when combined, can still uniquely identify an individual.
Collect only what you need. If you don’t collect sensitive data in the first place, you don’t have to protect it. Routinely audit your data collection forms and processes to ensure you are only capturing data essential for the specific purpose.
Always encrypt PII. Encryption at rest means data stored on hard drives or in databases is scrambled. Encryption in transit means data sent over networks (like your browser connection) is secured using protocols like HTTPS (SSL/TLS).
Restrict who can access PII. The Principle of Least Privilege (PoLP) dictates that users should only have the minimum level of access required to perform their job. For instance, a marketing employee doesn’t need access to medical records.
Implement MFA (or Two-Factor Authentication, 2FA) on all systems that store or process PII. MFA requires two or more verification methods (e.g., password and a code from a phone app), adding a crucial layer of defense against compromised credentials.
Human error is a major factor in breaches. Ensure all employees who handle PII receive mandatory, recurrent security awareness training. Also, maintain a robust Incident Response Plan to quickly contain and recover from any potential data breach.
Protecting PII is not just a compliance requirement—it’s a commitment to individual privacy and trust. By implementing these practices, organizations can significantly reduce the risk of costly breaches and maintain the confidence of their customers and users.