In this video I will run through how to permanently delete files and rewrite your git history using two methods. The git reset command for simple scenarios and using the BFG repo cleaner for more complicated real-world examples.
The steps on this video can be following at the blog https://blog.gitguardian.com/leaking-...
Link to BFG Repo Cleaner
https://rtyley.github.io/bfg-repo-cle...