As we get ready to wish the term SASE a happy 4th birthday, it seems odd that there is still a great deal of confusion in the market about what SASE really is and how it relates to a ‘Zero Trust’ architecture. For many, SASE is a framework for secure network design; for others, it’s seen more as an architectural approach to delivering Zero Trust. So why do we have this confusion when Gartner defined SASE back in 2019?