Comparing SPII vs PHI and PII: A Sensitive Information Guide

Key Takeaways: Sensitive data has never been more vulnerable, or more misunderstood. As data moves across clouds, SaaS platforms, and now into AI assistants like Copilot, ChatGPT, and Claude, organizations are realizing that not all “personal data” is created equal. You’ve probably heard terms like PII, PHI, and SPII, and maybe you’ve used them interchangeably.