How to Keep Your Cryptocurrency Secure
Protect the account, protect the recovery material, and understand what you sign. This practical guide separates three different problems so you can choose the right response.
Three layers of protection
Exchange account
Use a unique password and protect its recovery email. Enable a passkey or hardware security key where supported; otherwise use an authenticator app. Store recovery codes separately. Account protection does not remove the risk of an exchange failing or freezing withdrawals.
Wallet recovery
A wallet password or PIN usually protects that device. A recovery phrase can recreate access elsewhere. Keep recovery material private and offline, following the wallet provider’s instructions. Never enter it into a website, support chat or unsolicited recovery form.
Transaction permission
A hardware wallet isolates signing keys, but it can still authorize a harmful transaction. Read the asset, network, destination, amount and permissions on its trusted display. Reject requests you cannot understand; a familiar logo is not evidence of safety.
Connecting, approving and signing are different
| Request | What it can mean | Your decision |
|---|---|---|
| Connect wallet | Expose the account address and let the app request actions. | Check the domain and account before connecting. |
| Approve token spending | Allow a contract to move a specified token up to an allowance. | Check the spender, token and limit. Avoid unnecessary unlimited access. |
| Sign a message or transaction | Authorize a transfer, login or other permission; some off-chain signatures can authorize spending. | Read the full request. A signature without a network fee can still matter. |
Example: a pretend support agent asks you to “validate” your wallet with its recovery phrase. Stop. Legitimate support does not need that secret. Disconnecting an app does not revoke existing token allowances; inspect and revoke unwanted allowances through a verified wallet tool. Revocation normally needs a network transaction and fee.
Check a backup without destroying access
Use the provider’s built-in backup check or documented dry-run recovery. Do not wipe your only working wallet simply to test a phrase. Check whether a passphrase or additional recovery shares are required, and arrange secure access for an emergency without exposing the secret.
Before sending funds
Open the destination’s receive screen yourself. Match the asset, network, address and any memo. Compare the pasted address with the original, including on a hardware wallet display. A small test must meet the destination’s minimum; wait for credit before sending more.
If something goes wrong
Account login exposed
From a trusted device, secure the email and exchange account, end unknown sessions, review API keys and contact official support about account restrictions.
Unwanted token approval
Use verified wallet instructions to revoke it. Revocation does not recover stolen assets and does not repair an exposed recovery phrase.
Recovery phrase exposed
Treat the wallet as compromised. On a trusted device, follow the provider’s guidance to create a new wallet with new recovery material and move remaining assets where possible. Do not keep depositing into the old wallet.
Record transaction IDs and contact the relevant provider through its official site. Beware of anyone promising guaranteed recovery or demanding an advance payment. Preserve evidence; never share secrets with a supposed rescuer.
Put this lesson into practice
Practice: explain which secret restores a wallet, which action revokes an allowance, and how you would verify a withdrawal destination. If any answer is unclear, revisit the linked lessons before moving funds.
Compare hardware-wallet requirements
Hardware wallets still require careful backup and transaction checks. Compare supported assets, recovery methods and device compatibility before choosing.
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Sources and verification
Reviewed 25 October 2026. Examples are hypothetical. Check current provider instructions, supported networks and terms before acting.
