The problem of data masking comes up surprisingly often in the world of IT. Any time you need to share some potentially sensitive data, you may need to hide, obfuscate, randomize or otherwise dissimulate some of that data — we’ll call that the secret data.
In this article, we’re going to focus on the mechanics of data masking, and gloss over a massive issue, which is data classification — knowing who can access what data. Data classification is a whole different problem, especially in organizations that have huge amounts of sensitive data. I’ll refer you to a different article that