I will soon have redundant internet links by sharing my home fibre via wifi with the office across the road (which already has dual redundant internet).
I could easily and cheaply get a second fiber link at home too.
My apartment building is already highly secure with guards and nuclear, biological and chemical proof safe rooms - although my kids are in there not my Hive node :-)
Not really sure why a Hive node would need multiple layers of security in any case.