Multifactor blacklists in Flagright let you prevent transactions based on combinations of fields, like name and IBAN, rather than just single values. This helps you stay compliant and catch attempts to bypass regular checks with slight changes in details.
Step 1: Head to the Lists section from the main menu.
Step 2: Select Blacklists to manage your restricted combinations.
Step 3: Click Add New Blacklist.
Step 4: For Blacklist Type, choose Custom.
Step 5: Name your blacklist to describe its purpose, such as "Name + IBAN Blacklist".
Step 6: Add columns to define the restricted combination. For example, add a Name column (type: string) and an IBAN column (type: number).
Step 7: Click Add to save your column setup.
Step 8: Open your new blacklist, then enter the values you want to block. For example, add a row for a specific name and IBAN.
Step 9: Save the blacklist after entering all blocking pairs.
Set Up a Rule to Block Blacklisted Combinations
With your multifactor blacklist created, set up a rule that checks transactions for these patterns.
Step 1: Go to the Rules section.
Step 2: Click Create Scenario to start a new blocking rule.
Step 3: Name your rule, such as "Name + IBAN Blacklist Check".
Step 4: Add a variable by selecting the List Variable.
Step 5: Choose your custom blacklist from the Custom List dropdown.
Step 6: Set up a condition for the Name field—compare the transaction's name with the names in your blacklist.
Step 7: Repeat the process for the IBAN field so it matches both values in the same row.
Step 8: Build your logic. Use the Row Match operator to make sure both the name and IBAN align in the same blacklist row.
Step 9: Choose the rule outcome—flag, suspend, or block—according to your compliance workflow.
Step 10: Go to alert creation and click Create to activate the rule.
Multifactor blacklists give you stronger protection than simple blocklists. They let you catch more sophisticated patterns of fraud or evasion while keeping rule management straightforward. Adjust your combinations as risks evolve to stay ahead.

