Mask, Hash, Tokenize, or Encrypt? Choosing the Right PII Protection for Your Pipeline

In Part 1 you built a map: every column that holds PII, tagged with a tier. Feels like the hard part is over. Then someone in #data-platform asks the reasonable question: "OK so... do we hash the emails? Or mask them? I feel like hashing. Let's hash them." "Hash it" is the two-word answer that's almost always wrong in an interesting way. Not...