so far there isn't much info on anyone hacking the XB1. I believe that they were able to dump the NAND image, but since then it hasn't been cracked.
Actually yes the same group that used a raspberry pi computer to hack the ps4 security are working on the xbox one version of it shortly but in order for it to work they will have to bypass the game dialing home issues now inside the new dashboardÂ
Lawyers are scary people depending on were you live... once certain people grow a pair I'm sure we will see something released.
i think it also comes down to the XB1 being more secure than the ps4. the guys who put linux on ps4 indicated that there were many major security flaws they could exploit. that's why i have an in-box ps4 sitting in my bedroom. when the hack comes out for it, this one is still on virgin firmware.