Blacklisting is the act of creating a list of entities—such as individuals, organizations, or IP addresses—that are to be denied access, privileges, or services due to past behaviors or activities deemed undesirable or unacceptable. This can occur in various contexts: 1. **IT and Cybersecurity**: In computing, blacklisting refers to the practice of blocking access to specific websites, email addresses, or software applications that are considered harmful, malicious, or untrustworthy.
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