Log Analizi ve Anomali Tespiti

Write a Python script that analyzes security logs for anomalies. The script should: 1) Parse common log formats (Apache, Nginx, Windows Event Log, syslog), 2) Detect brute force attempts (>N failed logins from same IP), 3) Identify unusual access patterns (off-hours access, geographic anomalies), 4) Flag potential data exfiltration (large outbound transfers), 5) Generate a summary report with severity ratings. Use pandas for data analysis and include visualization with matplotlib. Add clear comments.