I think the originator of it was on dslreports but I couldn’t find the link on mobile. I’m sure if you can search on Google you could find a secondary source for some tech blog or medium about it if that makes you feel better. There’s also a discord that covers most xgs-pon bypass methods that I could share too. They keep turning it to private at times for whatever reason.
Other links and info of you are being serious and not passive aggressive. ATT is quick with DMCA takedowns so that’s probably why the info can be fleetingly available at times but dslreports seems to be pretty reliable/resistant to them.
https://www.dslreports.com/forum/r33665048-AT-T-Fiber-XGS-PON-SFP-Modules-for-AT-T-Fiber
https://hackaday.io/project/193110-bypassing-the-bgw-320-using-an-azores-cots-ont
https://forum.netgate.com/topic/99190/att-uverse-rg-bypass-0-2-btc/440
https://simeononsecurity.com/guides/bypassing-the-bgw320-att-fiber-modem-router/
Yeah the previous bypass used a certificate that you’d have to authenticate periodically via 802.1x. This new method does not have that requirement. Just need the specialized hardware for it, like that Azores d20 box or one of the SFP+ xgs-pon modules that you can program.
I’ve been using it without any intervention for a little over a 8 months now. Even have my /29 static IP block allocated on it, while still being able to also use the DHCP address they give out. You get to use the whole /29 too without the att box stealing one of them as well.