What are the security implications of repeated SQL Server Error 18456 occurrences?

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Grade: Education Subject: Support
What are the security implications of repeated SQL Server Error 18456 occurrences?
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Repeated occurrences of Error 18456, especially with multiple failed login attempts, can indicate a brute-force attack or unauthorized access attempts. Monitor the error logs and implement security measures like account lockout policies or intrusion detection systems to mitigate potential security threats.