@0xnull
About
Cybersecurity researcher based in Kyiv, Ukraine. I write about penetration testing, OSINT, bug bounty, and blue team tactics. Running @oxnull_security (EN) and @hakery_biznes (UA) — cybersecurity for tech folks and agribusiness. CTF player, tool builder, threat hunter.
Available for
Freelance pentesting & bug bounty engagements, OSINT investigations, security writing, and CTF collabs.
Ea Et's blogs
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