Self-custody
The individual's holding of their own cryptographic keys, with no custodian, a founding trait of crypto that renders it uninsurable.
Textbook case: an individual reports losing the recovery phrase for a hardware wallet, and with it access to their bitcoin. The insurer has nothing to check. It cannot tell how the backup was kept, whether there was negligence, or even whether the loss is real or the coins are sitting at another address. Self-custody, holding one's own keys with no custodian, is one of crypto's two founding promises alongside irreversible transactions. It is also what takes the asset out of insurable territory, because it removes the professional custodian whose security an underwriter can audit: cold-storage ratio, multi-signature schemes, physical protection of sites. So the market insures custodians, exchanges and qualified custodians alike, and leaves out the holder who keeps their own keys. Underwriters put the paradox this way: the truer the holder is to the decentralized ideal, the less insurable they become. Once a professional third party is back in the signing chain, some insurability comes back with it.
The market insures the custodians of cryptoassets, not the cryptoassets themselves. The self-custodied individual, the purest embodiment of the crypto ideal, stays outside the insurance market.
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