[binkHN]

Thanks for this! I found this URL in the thread very interesting!

https://www.nongnu.org/lzip/xz_inadequate.html

[mehdix]

It is an excellent technical write-up and yet again another testimonial to the importance of keeping things simple.

[userbinator]

The other comments here showing that the backdoor was a long-term effort now make me wonder just how long of an effort it was...