Guide 9/9/2026
Find Users with Multiple Failed Login Attempts
#sql query failed login attempts#identify brute force attack sql#monitor user login security sql#sql query count failed logins by user#detect suspicious login activity sql
Quick Answer
SELECT username, COUNT(*) as failed_attempts FROM login_logs WHERE status = 'failed' GROUP BY username HAVING COUNT(*) > 5 ORDER BY failed_attempts DESC;
To detect potential security threats or brute-force attempts, you need to filter your login logs for unsuccessful attempts grouped by the individual username. This query uses the COUNT function combined with a HAVING clause to isolate accounts that have exceeded a specific threshold of failures.
By adjusting the number in the HAVING clause, you can customize your security monitoring to alert you only when a specific, suspicious volume of failures is met. This helps maintain system integrity and allows you to proactively lock or flag compromised accounts.