Let's not forget about the orbital data center idea.

Perhaps an economic justification can be found for placing something so far up the gravity well that its adversaries can no longer physically approach it. Distributing the resource across many satellites would further confound any attack.

Increasing the cost of effect on a single target from $1,000 to $1,000,000,000 makes a difference. Especially when that 2nd option is likely to trigger additional multilateral strategic responses. If the only way to delete your adversaries data centers is with things like nuclear weapons, lasers and multi-stage rocketry, your adversary may have already won the game.