Combating abuse in Matrix – without backdoors
This was previously submitted to HN 23 hours ago — and in fact, there's even a link to the previous submission at the bottom of the Matrix article, which is how I found it<p><a href="https://news.ycombinator.com/item?id=24826951" rel="nofollow">https://news.ycombinator.com/item?id=24826951</a>