[Securimag's Blog, write-up for the 3 level of S3curLock](https://securimag.org/wp/articles/insomnihack-2018-write-up-s3curlock-level-1-2-3/)

(too much complex to be post here, please follow the link)

Original writeup (https://securimag.org/wp/articles/insomnihack-2018-write-up-s3curlock-level-1-2-3/).