> . While individually they would not be a problem, it’s the combination of these different parameters that allow you to narrow the pool so much it can reasonab

> . While individually they would not be a problem, it’s the combination of these different parameters that allow you to narrow the pool so much it can reasonably assumed to be PII. There are zipcodes in USA with only 1 person. So storing just zipcode would be ID information. Its an extereme example but how can machine check whats 'reasonable' in this case, go off of some census data for zipcode? I wonder if there are any real world ( as opposed to things like ingame points) information that can be considered not PII .