How to protect corporate property and information about it from theft?

Question

Business Informatics

To be honest, I don't even know how to phrase the question correctly. Let me explain with an example:
There is an IT company. During its work, various specific algorithms, utilities for internal use have been developed in it, a sea of ​​\u200b\u200bany content has accumulated.
Question: how to protect all this from the fact that some employee who has access to this data can take it and take it all out on a flash drive, for example.
And an additional question: how to correctly name what I'm talking about.

Answer 1

Deprive the workplace of flash drives, cd drives. All file operations, software installation, etc. through the admin. You can limit the internet. Lock on the admin the right to "copy files".