Context: You have some users uploading sensitive data to Github. These smart users are avoiding detection by using non-text formats e.g. XLSX or docx. How to get alerted for binary commits on Github?
Solution: Netskope next-gen Github API can detect and alert when a binary file is committed to Github. Create a very simple DLP rule that detects keywords for "Binary files". Call that into a profile and a Github ongoing policy. That's all that is needed.
Here are the required screenshots showing how to create a DLP rule using custom entity with case insensitive keyword.