First, the conclusion: self-custody wallets do not store assets. What they store is a key and the ability to read data from the blockchain. The balances you see in the interface are rendered results of the wallet querying the chain using your address, not something the wallet internally holds.
The consequences of this misconception are bigger than you might think, because it makes people worry about the wrong risks while ignoring the real ones.
A verifiable example
Observing the wallet is the most revealing. If you import an address and provide no private keys, the wallet can still fully display the balance, tokens, and transaction history under that address. The information is all there, but no asset can be used passively.
This shows that “seeing a balance” and “being able to move assets” are completely independent things. The former only requires an address; the latter requires a private key. And visually, the interface ordinary users see in their own wallets looks no different from the interface of just observing a wallet.
A five-dimensional comparison of three account types
Compare side by side across the same five dimensions:
Bank app
· Where asset records are kept: the bank’s internal ledger
· What the numbers on the interface are: the numbers the bank tells you
· Who can move funds: the bank executes based on your instructions
· After the service provider disappears: the assets remain; you can pursue them through legal and regulatory channels
· What you actually hold: a claim against the bank
Exchange account
· Where asset records are kept: the exchange’s internal ledger
· What the numbers on the interface are: what the exchange has recorded in its books
· Who can move funds: the exchange
· After the service provider disappears: whether you can cash out depends on its solvency
· What you actually hold: a claim against the exchange
Self-custody wallet
· Where asset records are kept: under a public address on the public chain
· What the numbers on the interface are: the rendered results after the wallet reads from the chain
· Who can move funds: anyone who holds the private key
· After the service provider disappears: assets are unaffected; just import the keys into any compatible wallet to regain access
· What you actually hold: a key
In the first two account forms, what you hold is a claim, and the real control of assets is in the hands of the institution. In the third form, what you hold is control itself, and the institution never touches your assets from start to finish.
What this difference determines
The positive part:
Uninstalling a wallet app does not cause loss of assets. The app is just a reading tool. You can recover access by installing any compatible wallet and re-importing your keys.
Changing devices does not involve an “asset migration” action because there is no asset that needs to be migrated. The whole process is just re-importing the keys on the new device.
A wallet vendor stopping operations does not affect on-chain assets. Assets were never held by the vendor, so there is no path for them to be frozen or misappropriated.
The opposite part, and this half is even more important:
Once a key or seed phrase is lost, no party can recover it—including the wallet vendor. This isn’t a service attitude issue; it’s a structural fact. There’s no recoverable data held by the vendor, and there’s no account that can be reset.
Similarly, any service that claims it can “recover a seed phrase” does not hold up. Technically, this capability doesn’t exist.
Misleading created by terminology
The term “wallet” itself creates the wrong mental model. It implies a container, making people think assets are stored somewhere—so their attention goes to the wrong place: worrying whether the app is reliable or whether the vendor might disappear, while paying insufficient attention to the seed phrase that actually determines ownership of the assets.
A description closer to the truth is: a string of keys, plus an on-chain data reader.
Conclusion
Understanding this will change the entire framework you use to judge wallet security. What you shouldn’t be evaluating is “whether this app will take my money”—it can’t. What you should evaluate is how the keys are generated, how they’re stored, and under what circumstances they leave your device.
So the question is: since the wallet itself doesn’t custody assets, what exactly does the phrase “my wallet was hacked” accurately refer to?