For example, there is a copy of the most core encryption keys, certificates/passwords etc, stored with a 3rd party, who is specialized in dealing with this kind

For example, there is a copy of the most core encryption keys, certificates/passwords etc, stored with a 3rd party, who is specialized in dealing with this kind of info in a modern way. Similar to how a Swiss bank is familiar with storing valuables/currency or executing a will. This type of service would need to be modern in the sense the info can be updated over an API etc. Anyone can create a DR plan and handle these issues, but then it isn't consistent, especially from a partner (VC etc) perspective.