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Secure Farcaster in two separate layers: protect the protocol identity and protect the wallet that holds assets. Farcaster recovery uses a custody address, signer keys, and a recovery address tied to your Farcaster ID (fid). Your wallet’s Secret Recovery Phrase (SRP, also called a seed phrase) is a different master secret that controls wallet accounts and funds. Set the Farcaster recovery address before you need it, keep the SRP offline, and use a hardened device for signing. A lost phone is inconvenient; an exposed SRP can let someone move the wallet’s assets, while a lost SRP can leave the wallet provider unable to restore access.
Understand what you are securing
A Farcaster account is not one key. The protocol separates a durable Farcaster ID (fid) from the address and keys used to control and operate it.
Farcaster ID (fid)
The fid is the durable identity associated with your Farcaster account. Names and IDs are recoverable through Farcaster’s time-delayed recovery system, provided you established a recovery address in advance.
Custody address
The custody address is the account-control layer for the fid. It is the address that can approve ownership changes and other identity-level actions. Moving the fid to a different custody wallet is a major security event: the transfer can unset your existing recovery address, so you must check the configuration again afterward.
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Signer keys
Signer keys authorize messages such as casts. They are operational keys, not the same thing as the custody address. A signer can be removed or replaced without handing another application your custody credentials. Review and remove signers you no longer recognize.
Recovery address
A recovery address is a preselected address that can start a delayed transfer of the fid to a new custody address. It may be another address in your wallet, a multisig controlled by trusted people, or a third-party recovery service. It can be changed, but changing it requires access to the current custody setup.
Wallet SRP
The SRP generates the wallet accounts that hold tokens and other assets. MetaMask’s official guidance describes it as “the foundation of your wallet” and warns that “anyone who can access your SRP can control your funds.” The SRP can restore a wallet on a new device, but the wallet provider cannot recreate it for you if you lose it.
These layers overlap during account setup, yet they have different failure modes. A Farcaster recovery transfer can restore identity control without restoring the assets in a separate wallet. Conversely, possessing a wallet SRP does not automatically give an application permission to operate your Farcaster account unless the relevant custody and signer authorization is present.
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Set a Farcaster recovery address before an incident
Farcaster’s documented recovery process is intentionally delayed. A recovery address requests a transfer to a new custody address. The current custody address can cancel that request. If it does not cancel the request within three days, the recovery address can complete the transfer. The delay gives the legitimate owner a window to stop an unauthorized request, but only if the owner notices it in time.
- Open the official Farcaster client. Use the account, security, custody, or identity settings exposed by the client you actually use. Labels can vary by client version.
- Identify the current custody address. Copy the complete address and verify it on a trusted screen. Do not rely on a shortened address shown in a notification or chat message.
- Choose the recovery address. Use an address you control and can access independently, a multisig governed by people you trust, or a recovery service whose operating terms you understand. Avoid an address that depends on the same lost phone or same single hardware failure as the custody wallet.
- Verify before confirming. Compare the full recovery address on a second trusted display. Check the first and last characters and, where possible, the complete address using a checksum or copy-and-compare process.
- Confirm and record the change. Write down the recovery address and the date it was set. Keep this record separate from the SRP; possession of the recovery-address record should not reveal the wallet’s master secret.
- Test your recovery plan on paper. Confirm who can access the recovery address, which device or signers are required, and how you would learn that a transfer request was pending. Do not initiate a live transfer merely as a test.
Recheck the setting whenever you move the fid to a new custody wallet. Farcaster documentation notes that transferring the asset to a new custody address can unset the recovery address. A recovery plan that was correct before the move may therefore be absent afterward.
Protect the Secret Recovery Phrase
Know what the phrase does
The SRP is generated when the wallet is created and derives the accounts that hold tokens. Importing the same phrase into another wallet application recreates those accounts and gives that application the ability to sign transactions. It is not a login password, a support code, or a phrase that a service can reset.
MetaMask states, “MetaMask cannot recover your wallet for you.” Treat that as a practical rule for every self-custody wallet: no legitimate support agent, Farcaster moderator, or application needs the phrase to diagnose an account. Anyone asking for it is asking for complete control of the wallet.
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Make an offline master copy
- Generate or reveal the phrase only inside the official wallet interface on a trusted, private device.
- Write every word in the displayed order, including any final word or checksum confirmation the wallet requires.
- Check the transcription by using the wallet’s built-in verification step. Do not photograph or scan the phrase.
- Store the copy offline in a private, access-controlled place. A steel or fire-resistant mnemonic backup plate can resist common paper hazards such as water, heat, and tearing.
- Create a second durable copy only if you can secure it separately. A geographically separate location reduces the chance that one fire, flood, or theft destroys both copies.
Purchase a physical backup from a reputable marketplace, inspect the materials and packaging, and assemble it in private. Never enter the phrase into a product listing, warranty form, cloud note, password manager that is not designed for seed storage, support ticket, or website. A durable plate is a storage method, not a recovery service and not an endorsement of any particular manufacturer.
Separate recovery records
Keep the recovery address, fid, custody address, signer inventory, and date of the last review in a record that does not contain the SRP. This lets you explain the recovery plan to your future self or trusted co-signers without creating a single document that unlocks everything. If you use a multisig recovery address, document the signer count and the threshold, but do not record other people’s private keys.
Harden the phone or computer that handles Farcaster
- Lock the device. Use a long passcode and enable biometrics backed by that passcode. Do not rely on a short numeric code that someone can observe.
- Update promptly. Keep the operating system, browser, wallet, and Farcaster client current. Install applications only from the publisher’s official store listing.
- Use malware protection on signing computers. Endpoint protection helps detect malicious software, but it cannot make an exposed SRP safe.
- Limit phrase exposure. Disable screenshots, clipboard syncing, and cloud backups for phrase material where the operating system permits. Clear copied text immediately if you ever had to copy an address or other sensitive value.
- Check the publisher and domain. Phishing sites often imitate wallet or Farcaster screens. Open the client from a known bookmark or official store rather than a link sent in a direct message.
- Review permissions. Remove unused Farcaster signers and disconnect applications you no longer recognize. A client that only needs to read or post should request the narrowest authorization available.
- Protect the physical device. Do not leave an unlocked phone with a wallet open. Use separate user accounts on a shared computer and avoid signing transactions on public or managed machines.
Device controls complement offline storage. They reduce the chance that malware or a thief captures the phrase while you use it, but they do not replace the offline backup or the three-day Farcaster recovery window.
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Use multiple devices without copying custody credentials
Copying an EOA seed phrase into every Farcaster client multiplies the places where the master secret can leak. Farcaster’s Auth Addresses proposal introduces an Ethereum-address key type intended to authenticate on behalf of a Farcaster user. The design targets secure multi-client access for smart wallets or multiple devices without sharing custody credentials.
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Auth Addresses remain proposal-level capability unless the particular client documents support. Before using a second device:
- Check the client’s current documentation for Auth Addresses or another explicitly scoped authorization method.
- Prefer a flow that requests a limited signature or creates a dedicated signer rather than asking for the custody phrase.
- Confirm exactly what the signature authorizes and whether it can be revoked.
- Use a separate signer for a secondary device when the client supports it, and remove that signer when the device is retired.
- Never paste the custody SRP into an unfamiliar client merely to read your feed or publish a cast.
An app-created wallet or mobile key-manager backup can reduce the chance of losing access, but it is an additional recovery route, not permission to give the phrase to another person or an untrusted service. Evaluate who controls that backup, how it is encrypted, and whether you can recover without the original phone.
Choose a phrase-storage method deliberately
The important comparison is not brand or appearance. Evaluate durability against fire and water, resistance to casual discovery, ease of checking word order, the ability to make a second backup, and whether the method ever exposes the phrase to an internet-connected device.
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| Paper copy | Simple to create and easy to verify by sight | Can burn, tear, fade, or be damaged by water; keep it private and consider a durable second copy |
| Steel or fire-resistant mnemonic plate | More resistant to common fire, water, and physical damage; word order can be checked directly | Still reveals the phrase to anyone who finds it; secure the storage location and inspect the material before use |
| Cloud note, email, or photo | Easy to retrieve from many devices | Creates an internet-accessible copy that can be stolen or synchronized; do not use for an SRP |
| Importing into another wallet app | Can restore accounts on a replacement device | Expands the number of applications holding the master secret; use only an official, trusted wallet when recovery is necessary |
What to do when something goes wrong
You lost the phone but still have the SRP
- Obtain a replacement device from a trusted source and apply operating-system updates before installing the wallet.
- Install the official wallet and Farcaster client from verified stores.
- Restore the wallet using the SRP in a private setting. Confirm that the expected accounts and balances appear.
- Review Farcaster custody, recovery-address, and signer settings. Revoke signers associated with the lost phone and add a new signer through the documented client flow.
- Change device locks and any wallet password that may have been exposed with the old phone.
The SRP restores wallet accounts; it does not by itself prove that a new Farcaster client is authorized to operate the fid. Complete the identity-side checks separately.
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You lost the phone and do not have the SRP
Do not assume a wallet provider can reconstruct the wallet. If you established an app-supported key-manager backup, follow that provider’s documented recovery process without disclosing the phrase to a person. If no independent backup exists, wallet access may be unrecoverable. Use the Farcaster recovery address to preserve control of the fid if the custody address is unavailable, and monitor for a transfer request during the three-day cancellation period.
You suspect the SRP was exposed
- Assume the wallet is compromised; do not wait for a suspicious transaction.
- On a trusted, clean device, generate a completely new wallet and record its new SRP offline.
- Move assets from the exposed wallet to the new wallet, checking every destination address on the signing screen. Account for network fees and token-specific transfer requirements.
- Stop using the exposed wallet for new deposits or approvals. Review and revoke token approvals where the relevant network and wallet tools support that action.
- Update the Farcaster custody and recovery configuration according to the client’s documented flow. If the custody address itself was exposed, move the fid and set a new recovery address.
- Ignore anyone who contacts you claiming to be support and asks for the old or new phrase.
You see an unexpected Farcaster recovery request
Use the current custody controls to cancel the request immediately. The protocol’s three-day delay is a protection window, not a guarantee that you will be notified. Investigate how the recovery address or a signer was accessed, rotate compromised signers, and verify the custody address and recovery address on a trusted device before continuing to use the account.
Maintain the account over time
- Check the custody address, recovery address, and active signers after every custody-wallet migration.
- Review connected clients and applications on a regular schedule and after installing a new client.
- Confirm that each recovery co-signer can still respond and that a multisig threshold remains practical.
- Inspect the physical SRP backup for damage without taking it out of its secure location unnecessarily.
- Update your written inventory when a device, signer, or recovery address changes. Record dates, not the SRP itself.
- Keep an emergency plan for the three-day delay: who watches for requests, who can cancel, and which trusted device is used to sign the cancellation.
A practical security standard
A secure Farcaster setup has four independent properties: the fid has a recovery address that is actually reachable; custody and signer keys are separated and reviewed; the wallet SRP exists in an offline, durable backup; and every device that displays or signs transactions is locked, updated, and obtained from an official source. If one property fails, treat it as a focused incident rather than assuming the other layers will compensate automatically. Identity recovery and wallet-fund recovery are related plans, but they must be documented and tested as different plans.
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