Setting up a vault
A vault is a separate account that stores your cryptocurrency more securely. To set up a vault, sign in to Coinbase.com on desktop (this can't be done through the mobile app):
From Coinbase, select My Assets on the left side of the screen.
Choose the crypto asset you'd like to store in a vault.
Select See balance summary.
Select Vault then select Create a vault.
Select which email addresses will be cosigners, they can be email addresses owned by you or others. For each email address, an associated Coinbase account must already exist or be newly created.
Once email addresses are entered, select Submit.
Follow the Accept invitation link in the email sent to your secondary email address to verify your account.
You'll be redirected to log in to the Coinbase account associated with the co-signing email addresses, or to create a new Coinbase account if there’s not one associated already.
Once completed, then you can send correlating crypto to your vault. Learn more about Vaults.
Only the master account holder can request a withdrawal, but a certain number of approvals are needed before funds can be withdrawn, either 2-of-3 or 3-of-5. If you are designating co-signers other than yourself, It's very important to designate only trusted individuals as co-signers.
Note: There is a 48-hour waiting period after vault is created.