If you search there's a few threads discussing this. You won't find an official solution since there isn't a way to secure it.
https://www.integraforums.com/forum/threads/a-spare-tire-that-fits-under-the-load-floor.51812/
I don't think there's anything guaranteed to work. I installed https://advancedlocks.com/
These are more difficult to get off than most but nothing is 100%. Also they will bust your window looking for the key.. so I may take a bit longer especially if the key isn't in your car.
Oh man .. so I was right. Fantastic job. I have been eyeing this since the new Accord debuted.
Is this an aftermarket Android unit or from the new accord?
My 275/30r19 DWS have held up pretty well. I have hit numerous pot holes and debris without issue, knock on wood. Traction is adequate though I would still like a dedicated summer set of wheels .