It's here, too:

https://arstechnica.com/information-technology/2019/10/forum-cracks-the-vintage-passwords-of-ken-thompson-and-other-unix-pioneers/


On 10/10/2019 9:57 AM, Henry Bent wrote:
> I have no opinion on the password hacking (especially since Ken seemed 
> fine with it), but this is to me distasteful.  The media was alerted, 
> and that media was of all things The Register?  It's not exactly a 
> site known for its thoughtful or balanced journalism.
>
> -Henry
>
>
> On Thu, 10 Oct 2019 at 04:22, Dan Cross <crossd@gmail.com 
> <mailto:crossd@gmail.com>> wrote:
>
>     On Wed, Oct 9, 2019, 1:50 AM Nigel Williams
>     <nw@retrocomputingtasmania.com
>     <mailto:nw@retrocomputingtasmania.com>> wrote:
>
>         ken is done:
>
>         ZghOT0eRm4U9s:p/q2-q4!
>
>         took 4+ days on an AMD Radeon Vega64 running hashcat at about
>         930MH/s
>         during that time (those familiar know the hash-rate fluctuates and
>         slows down towards the end).
>
>
>     This feat made it The Register:
>     https://www.theregister.co.uk/2019/10/09/ken_thompsons_old_unix_password_cracked/
>
>             - Dan C.
>