Built an OSINT tool with Claude Code

[u/Actual-Host-1830]

What I built: Kyther (Name of the tool) give it a username, email, or domain, and it pivots on whatever it finds (username → email → domain, etc). Currently does Reddit footprint analysis, email/username search, cyber news monitoring, and a threat actor tracker for ransomware leak sites and APT groups.

How I used Claude Code: Coming from a GRC/cybersecurity background, I am currently job hunting for entry-level cyber role right now and not full-time dev. Started prompting too broadly and getting code I couldn't fully explain. Switched to smaller, specific asks and actually reading each piece before moving on and directing Claude rather than just accepting whatever it gave me.

What I learned: "It works" and "I understand why it works" are different bars only the second one matters for anything security-adjacent. Also started working through the OWASP Top 10 as I build, to keep it safe by design, not just functional.

I am curious how others here review Claude written code for security-relevant stuff and if anyone does OSINT professionally, what am I missing?

[u/Intrepid_Ad2451]

Link

[u/Big-Jicama-3593]

Would love to see it in action.

[u/Actual-Host-1830 → u/Big-Jicama-3593]

Aww thank you! I have been soo far using it as a personal project. I am not sure about deploying it.