How many nodes are needed At launch?


In the launch of the first iteration of the enigma network how many secret nodes are needed for the network to be considered secure?

Also how / under what circumstances might this number change over time?


I don’t think there’s a right number. Generally speaking, the more nodes you have, the more secure the network is. Since # nodes is proportional to the overall stake, that also tells you much about the cost to attack the network (albeit, with SGX, simply acquiring stake is a necessary, but not sufficient condition).