The False Allure of Hashing for Anonymization
This is a question that I&#x27;ve thought of recently, as I am going to be working with a set of data that is the kind of data that may have damaging personal repercussions if  identified with you but is good for society as a whole to be tracking, but that tracking doesn&#x27;t have to be personally identifiable.  Something like, it could be bad for me if it was revealed to my insurance company that I drove more than 5000 miles a year on a motorcycle, but beneficial for society as a whole to understand accident rates for high mileage motorcycle drivers.  Do you have any thoughts&#x2F;resources on how one could go about creating a privacy environment where users could input how many miles they drove, and where we have reporting that analyzes that information they put in?  My first thought had been hashing primary keys, but as you point out in your article, that obviously isn&#x27;t the best answer.