🔒 CISOs: Must-Have Free Cybersecurity Tools in 2025 🔒

The cybersecurity landscape keeps evolving, and so should your toolkit. But high-quality tools don’t have to drain your budget.

Here’s a handpicked list of must-have free tools every CISO should explore in 2025 to protect, monitor, and respond effectively:

1️⃣ Wazuh – Open-source SIEM, log analysis, and endpoint monitoring.
https://wazuh.com/

2️⃣ OSQuery – SQL-like queries to monitor endpoint security in real time.
https://osquery.io/

3️⃣ Nmap – Network discovery and vulnerability scanning made simple.
https://nmap.org/

4️⃣ Nikto2 – Web server scanning for dangerous files and outdated software.
https://github.com/sullo/nikto

5️⃣ TheHive Project – Collaborative incident response platform for fast investigations.
https://thehive-project.org/

6️⃣ MISP (Malware Information Sharing Platform) – Collect, store, and share threat intelligence.
https://www.misp-project.org/

7️⃣ GRR Rapid Response – Remote live forensics framework for endpoints.
https://github.com/google/grr

8️⃣ Security Onion – Linux distro packed with monitoring, detection, and threat hunting tools.
https://securityonionsolutions.com/

9️⃣ Trivy – Free container vulnerability scanner for Docker and Kubernetes.
https://aquasecurity.github.io/trivy/

🔟 MITRE ATT&CK Navigator – Visualize attacker tactics and techniques to improve defense strategy.
https://attack.mitre.org/

These tools provide a strong foundation for building a robust cybersecurity posture while staying cost-efficient.

Want to uncover human risks that tech can’t see? AUMINT.io runs real-world social engineering simulations to reveal hidden vulnerabilities in your workforce.

📅 Explore with a free intro call: Schedule here

💾 Save this post and start upgrading your 2025 cybersecurity toolkit today!

#CISO #CyberSecurityTools #OpenSourceSecurity #ThreatDetection #AUMINT