Last updated on December 23rd, 2020 by Radostin Angelov. Filed under

In IT and WordPress security a blacklist refers to a list of non trusted sources or objects. For example if you would like to block a number of IP address from accessing your website you can use the blacklist approach; allow everybody to access your website and only block the offending IP addresses. While in some cases you have no other option but to use the blacklist approach, where possible (especially when configuring a server or software) use the whitelist approach instead. Whitelisting is typically much easier to manage and keep up to date.

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