Re: HPLIP
If the WINDOWS and PHONE software+drivers is where the slurpage is happening, then I think those of us using CUPS and the HPLIP drivers are in the clear... for now.
HOWEVER...
I suppose I'll eventually need to put the printer on a firewalled subnet then. I would set its primary gateway to something that can't route to anything outside of the LAN.
And if THAT doesn't work, I'll be looking for something that's equally well support for Linux and FreeBSD as HP has been, because IF I HAVE TO WRITE THE PRINTER DRIVERS MYSELF AND PUBLISH THEM, then I'll do JUST THAT, and they can TAKE THEIR SLURP and CRAM IT UP THEIR INKWELLS.
The HP printer I have is an older 'all in one' which never really worked properly out of the box, but I can "get it to work" by talking nice to it and offering it flowers on occasion. Their quality had obviously gone downhill and not just a little downhill. The top paper feeder for the scanner/fax stopped working shortly after I bought it, but as I didn't do multi-page FAXs I ignored it. However it fails to feed paper a LOT, unless I "bend it a certain way" and things of that nature. If the paper stack is too tall, or too small, feed errors are common...
Couple that with DATA SLURPAGE and "brand loyalty" just circled the drain and wend *slurp* - back at ya!