Can Artificially Generated Logs Really Help Security Analysts?

Can someone explain to me the use of artificially generated log for security analyst? I understand log is super important for analyzing and detecting potential threats but I can't really wrap around the concept of synthetically making one in my tiny monkey brain. Why make fake ones when there are real ones? \*scratching head\*

Can someone give me a practical, real-life scenario in which said tool could be important? I have 0 experience in security monitoring and visualizing tool so …

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