All the DLPs rely on, effectively, regular expression searches of traffic.
This is fine if what you need to protect are SSNs, phone numbers, credit card numbers... but if your data is not easily recognized that way, they don't work.
If you ask the DLP vendors about their threat model -- and the salespeople generally don't know what a threat model is -- it's always a set of stories about a salesperson who clicks the download-as-CSV button on a CRM system, a DB reporting specialist who generates a report full of raw passwords and credit card numbers, and an off-shore programmer who sends AWS credentials via email.
Hopefully you can spot the non-DLP prevention mechanisms for all of these...
What is it?
https://www.cnbc.com/amp/2020/08/04/anthony-levandowski-gets...
1984 is so appealing for so many people, it seems like it is just a book about the tendencies that power can take when it is not guided by sane principles. I have always been employed in a high trust capacity since I was a young adult, there is not a technically feasible system in the world that could prevent me from wrecking havoc in a company. Social ones though, they are extremely effective.