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Nine Essential Open-Source Security Tools for Teams

🔒 This article highlights nine widely used open-source security tools that help defenders identify vulnerabilities, analyze network traffic, perform forensic investigations, and manage threat intelligence. It stresses community-driven development and transparency as core advantages of open-source solutions and notes that independent review often speeds discovery and remediation. Representative tools covered include ZAP, Wireshark, BloodHound, Autopsy, MISP, Let's Encrypt, GnuPG, Yara and osquery, with attention to extensibility, multi-platform support, and practical deployment considerations for security teams.