In contrast to the whitelist, a blacklist (also: negative list) refers to a summary of elements that, in the opinion of the author, are not trustworthy and should be disadvantaged in some way compared to the elements that are not listed.

In the field of fraud prevention, this is usually a collection of addresses, phone numbers, IP addresses, email addresses and/or credit cards that are associated with a “bad” customer or a fraudster.

By creating such a list, you can, for example, have all orders containing data from the blacklist automatically blocked or cancelled – with the aim of minimizing your risk of fraud by repeat offenders.

Learn how to use blacklists to protect your business from fraud:

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