The link to the researcher's post is here: https://www.linkedin.com/posts/edgerck_today-we-could-announ....

I'm not holding my breath that this holds up to any scrutiny. For one thing, the author is refusing in the thread -- multiple times -- to demonstrate his attack. He says we need to wait for the publication of his paper. He also says you can email him and get a pre-publication copy of the paper.