What matters
- Custody determines who can authorize movement of assets.
- Recovery and withdrawal rules are part of the product, not customer support trivia.
- Third-party custody and self-custody fail in different ways.
- A review should state what is known, unknown and last verified.
The interface can hide the most important dependency
Two products can show the same balance, charts and buy button while creating completely different legal and technical relationships. One may credit a custodial account controlled by an operator; another may let the user sign transactions with their own keys. The difference is not cosmetic. It changes who can move assets, who can recover access and which failures matter most.
Comparison pages often put custody under a generic 'security' label. That compresses too much. Custody should be a first-class field with its own evidence, because it shapes withdrawals, insolvency exposure, recovery and day-to-day control.
Recovery deserves the same attention as login security
Strong two-factor authentication is useful, but an account can still have a weak recovery path. If email changes, identity resets or support overrides can remove protections, the recovery process becomes part of the threat model.
For self-custody, the opposite problem appears: there may be no recovery desk at all. Seed phrases, backups and device replacement therefore become core product mechanics. A useful review explains those mechanics without calling either custody model universally safer.
Withdrawals are where custody becomes operational
A custodial balance is only as useful as the user's ability to move it under the platform's rules. Withdrawal allowlists, network support, manual reviews, outage handling and security delays can all change real access.
That does not mean every delay is bad. Some controls reduce account-takeover risk. The research task is to document the control, its scope and its trade-offs rather than turning every friction into a positive or negative score.
A better review structure
A professional product record can separate custody model, key control, recovery, withdrawal controls, asset segregation disclosures, proof-of-reserves evidence and incident history. Each field can carry a source and verification date.
This produces less marketing-friendly copy and more decision-useful research. It also makes updates safer: when one fact changes, editors can update the evidence without rewriting the entire conclusion.
Primary reading
Official source material used for background and risk framing. Platform-specific claims should be verified against current operator documentation and local rules.