There are three ways to blacklist card, account or device data or to add them to the black list.

• You can use the tab "Fraud prevention" → "Black list" to create a new list entry using the "New entry list" button.
• You can upload a CSV file with several card, account or device data.
• You can use the "Blacklist " button in the detailed view of an operation to blacklist card, account or device data.

In order to enable the card, account or device data again, you must switch the corresponding list entry to inactive.

Adding a new list entry to the black list

Proceed as follows to add a new list entry to the black list:

1. Open the tab "Fraud prevention" → "Black list".

→ The black list opens.

1. "Period" selection field
2. "Blocking characteristics" selection field
3. "Search and Filter" button
4. "New list entry" button
5. "Upload csv" button

2. Click on the "New list entry" button.

→ The "New list entry" window opens.

1. Drop-down "Type of blacklisting" menu
2. "Listed value" input field
3. "Add data entry" button

3. Select the type of blacklisting from the drop-down "Type of blacklisting" menu.

5. Click on the "Add data entry" button.

→ Computop Analytics verifies the data entered. If the data are invalid, a message showing the reason why will appear in red. If the data are valid, the card number, the IBAN or the device ID is used to create a list entry in the black list. If you wish to enable the card again, you must switch the list entry to inactive.

Blacklisting several card, account or device data using a CSV file

You can use the "Upload csv" button to blacklist several card, account or device data by using a CSV file. To do so, collect operation data such as the credit card number, account number of IP address in a CSV file, which you can then upload to Computop Analytics.

If you upload a CSV file to Computop Analytics, Computop Paygate will create list entries for the blacklisted data saved to the CSV file.

Proceed as follows to blacklist several card, account or device data by using a CSV file:

1. Open the tab "Fraud prevention" → "Black list".

→ The black list opens.

1. "Period" selection field
2. "Blocking characteristics" selection field
3. "Search and Filter" button
4. "New list entry" button
5. "Upload csv" button

2. Click on the "Upload csv" button.

→ The "Upload csv" window opens.

1. "Browse..." button
2. "Upload csv" button

→ The file explorer opens on the computer.

4. Select the CSV file on the computer.

5. Click on the "Upload csv" button.

→ Computop Analytics verifies the CSV file. If the CSV file is invalid, a message showing the reason why will appear in red. If the CSV file is valid, list entries are created to add the blacklisted data to the black list.

Sample Blacklist.csv

Here is a sample how credit a specific card number, two ranges of card numbers and a pseudo card number plus an IBAN can be put on blacklist via CSV-file.

CC,4111111111111111
CC,411111
CC,422222222
CC,0123456789012345
EDD,DE1212345678123456789

Opening the detailed view of an operation

The tab "View operations → Operations", tab "View operations → Transaction details" and tab "Global search" (optional) allow you to use the search results to open the detailed view of an operation. You can access more information about customer and operation data in the detailed view. Moreover, you can add other actions to the operation in the detailed view, such as captures or credits. If an operation was carried out using a credit card, you can blacklist the credit card in the detailed view. If you wish to enable the card again, you must remove the credit card listed under fraud prevention (black list).

Proceed as follows to open the detailed view of an operation:

1. Activate values in the selection fields.

2. Click on the "Search and Filter" or "Search" button.

→ Computop Analytics verifies the values entered. If the values are invalid, a message showing the reason why will appear in red. If the values are valid, the search results will be shown.

1. "Merchant reference number" column
2. "Merchant reference number" of an operation

3. Click on the merchant reference number for the required operation in the "Merchant reference number" column.

→ The detailed view of the operation opens.

1. "Blacklist " button

Blacklisting card, account or device data by using the detailed view of an operation

Proceed as follows to blacklist several card, account or device data using the detailed view:

1. Open the detailed view of an operation.

→ The detailed view of an operation opens.

1. "Blacklist " button

2. Click on the "Blacklist " button.

→ Computop Paygate uses the card, account or device data to create a list entry in the black list.

The "Blacklist " button disappears and the card, account or device data have been blacklisted. If you wish to enable the card again, you must switch the list entry to inactive.