[tialaramex]

In a safe? Buy a half-decent one.

You should align your storage choice to your contingency plan. For a lost root your contingency plan should involve distrusting and replacing the hierarchy underneath the root. To the extent that you wish to avoid executing the plan, buy a better safe so you are less likely to need the plan.

It is OK for your contingency plan to include "Go bankrupt and cease to exist" if you are any sort of corporate entity.

[Latty]

I'm a bit confused by why you responded to me with this.

"Installing safes onsite and self monitoring" was literally the example given by the person asking for other suggestions.

[tialaramex]

Sorry, probably the tangle of threads caused me to disconnect that from your response, as you say my response is useless in light of this.