I will let this tread rest for a while, as IMHO (In My Humble Opinion) everything we know ATM (At This Moment) is documented in the links I provided and besides making sure our machines have been updated (more precise: downgraded the xz package) there is not much we can do. I will NOT participate in speculations and potentially harmful spreading of rumours. And now I will be taking care of other things on this beautiful day. Thank you all for taking your time to read and comment!