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Blacklist (Negative List)
A blacklist, or negative list, is a collection of attributes such as IP addresses, email addresses, credit card numbers, or individuals that are identified as known or suspected sources of fraudulent or malicious activities. Being on a blacklist typically results in being blocked or denied access to certain services or systems.
Maintaining a blacklist helps businesses quickly identify and block transactions or interactions from known malicious sources. This proactive measure reduces the risk of fraud by preventing previously identified threats from re-engaging.
Reliance solely on blacklists can be limiting, as fraudsters constantly evolve their tactics. Combining blacklists with real-time monitoring and adaptive security measures is crucial for effective security.
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