> For the complete documentation index, see [llms.txt](https://support.cregis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.cregis.com/risk-management/address-book.md).
# Address book
#### Address Book
The Address Book is used to centrally manage the risk attributes of on-chain addresses, supporting the maintenance of two types of addresses: Whitelist and Blacklist.
* Whitelist: Used to record trusted addresses. It serves as a basis for risk control clearance, address identification, and internal frequently-used address management, and can be quickly selected when sending transactions.
* Blacklist: Used to record risky addresses, prohibited transaction addresses, or addresses that require high-priority interception.
Users can add, edit, delete, filter, and batch import addresses in the client, making it easy for the risk control team to maintain address data uniformly.
> Navigation Path: Risk Control → Address Book → Whitelist / Blacklist
**Add Whitelist Address**
* Click the "Add" button on the Whitelist page and select the currency.
* After entering the creation page, you can directly fill in the address information in the table. To add multiple addresses, click the "+" at the bottom left of the table to add a new row, or click "Upload Form" at the top right of the page to batch import addresses.
* After verifying the details, click the "Save" button at the bottom left of the interface.
* Complete the identity verification, and the whitelist address will be added successfully.
**Edit Whitelist Address**
* Find the target address in the Whitelist list and click the "Edit" button.
* Enter the Whitelist edit page to modify the currency, alias, and address-related information.
* After confirming the modifications, click the "Save" button and complete the identity verification to successfully edit.
**Delete Whitelist Address**
* Find the target address in the Whitelist list and click the "Delete" button.
* Click the "Confirm" button on the delete confirmation pop-up window and complete the identity verification to successfully delete.
**Enable/Disable Whitelist Verification**
* When enabled, transactions are only allowed to be sent to addresses that have been added to the whitelist; addresses not included in the whitelist will not be able to initiate transactions.
* Note: Whitelist verification only applies to transactions manually initiated from the client. Withdrawal requests initiated via API do not undergo whitelist verification.
> Navigation Path: Management → Team Security → Whitelist Verification
**Add Blacklist Address**
* Click the "Add" button on the Blacklist page.
* After entering the creation page, you can directly fill in the address information in the table. To add multiple addresses, click the "+" at the bottom left of the table to add a new row, or click "Upload Form" at the top right of the page to batch import addresses.
* After verifying the details, click the "Save" button at the bottom left of the interface, and the blacklist address will be added successfully.
**Edit Blacklist Address**
* Find the target address in the Blacklist list and click the "Edit" button.
* Enter the Blacklist edit page to modify the alias and address-related information.
* After confirming the modifications, click the "Save" button and complete the identity verification to successfully edit.
**Delete Blacklist Address**
* Find the target address in the Blacklist list and click the "Delete" button.
* Click the "Confirm" button on the delete confirmation pop-up window and complete the identity verification to successfully delete.
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