Maybe you're thinking of Phrack [1]?
I wonder if there'll be another edition of it, and if yes what it would look like, now that the AIpocalypse seems to have reached security research...
[1]: https://phrack.org
[1]: https://phrack.org
(and interactions like these are part of the reason why I <3 HN)
[1]: https://thugcrowd.com/archive.html
Edit to add, apparently one of the ThugCrowd people is part of tmp.0ut so that would explain why my mind immediately went there.