— Cybersecurity – Threat Intelligence & Incident Response
SIEM & Threat Detection – Microsoft Sentinel Guided Implementation
As part of my hands-on cybersecurity learning journey, I designed and implemented a Microsoft Sentinel-based SIEM solution in a simulated environment. This guided project allowed me to gain practical experience in real-time threat detection, incident response automation, and security monitoring.
Project Goals
✅ Deploy Microsoft Sentinel as a cloud-based Security Information and Event Management (SIEM) tool.
✅ Simulate cyber threats (phishing, brute force attacks, suspicious logins) and analyze detection effectiveness.
✅ Automate incident response workflows to mitigate threats faster.
✅ Filter out false positives and ensure accurate alerting for security incidents.
✅ Improve cloud security visibility using log aggregation from multiple sources
Tools & Technologies used
✔ Microsoft Sentinel – SIEM for log monitoring & threat intelligence.
✔ Azure Security Center – Cloud security monitoring & compliance tracking.
✔ Kusto Query Language (KQL) – Used for log analysis & custom detection rules.
✔ Power Automate & Logic Apps – Created automated threat response playbooks.
✔ Attack Simulation – Used phishing simulation tools & brute-force login attempts to test security effectiveness.
Implementation
— Strategy
Implementation Steps
✔ Configured Microsoft Sentinel and integrated Azure AD, Office 365 logs, firewall security events.
✔ Created custom detection rules using KQL to filter brute-force login attempts, suspicious IPs, and phishing threats.
✔ Designed automated incident response workflows for security alerts (e.g., blocking IPs, disabling compromised accounts).
✔ Conducted attack simulations to evaluate how Sentinel responds to real-world threats.
✔ Reduced false positives by fine-tuning alert settings and improving security log correlation.
✔ Ensured compliance alignment with ISO 27001 & GDPR best practices.
%
Improved accuracy of security alerts, reducing false positives by 35%
Automated 50% of incident responses, allowing faster threat mitigation
🛡️ Detected & blocked simulated threats, reinforcing real-world cybersecurity defense skills.
🔍 Developed strong proficiency in Microsoft Sentinel & security log analysis.
📊 Enhanced cloud security posture, aligning with industry best practices.
Key Takeaways
💡 Hands-on experience with Microsoft Sentinel & SIEM implementation.
💡 Understanding of real-world threat intelligence & response automation.
💡 Practical knowledge in cybersecurity monitoring & compliance management.