zackey-heuristics

My name is zackey-heuristics.
I am hacker and member of pinja.
Please feel free to call me zackey.
My current interests are OSINT (Open Source Intelligence), ASM (Attack Surface Management) and reverse engineering.
Please keep in touch.

Recent Activities

November 2025
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October 2025
OSINT.JP Conference 2025 Staff (receptionist and moderator)

August 2025
DEF CON Recon Village | Live Recon Contest (2025): 2nd place (as a member of Team pinja)

July 2025
Hack Fes. 2025 Volunteer Staff

June 2025
第1回OSINT-JP勉強会: LT Speaker

June 2025
DIVER OSINT CTF 2025: 4th place (as a member of Team pinja)

June 2025
A community CTF by Maltego (2025): 23rd place (as a member of Team pinja)

May 2025
HACK'OSINT CTF 2025 Qualification: 17th place (as a member of Team pinja)

March 2025
Le bruit des bottes chap.1 / chap.2: 16th place (as a member of Team pinja)

February 2025
防衛省サイバーコンテスト2025冬: 328th place

November 2024 - December 2024
Ds試験: 29th place (as a member of Team ARZY)

July 2024
Hack Fes. 2024 Volunteer Staff

June 2024
HACK'OSINT CTF 2024: 13th place (as a member of Team pinja)

June 2024
DIVER OSINT CTF: 8th place (as a member of Team pinja)

May 2024 - June 2024
MEDILEAK CTF OSINT: 81st place

April 2024 - May 2024
APT Hunter: 52nd place

April 2024
HEXA OSINT CTF V3: 96th place (as a member of Team Ultimate Detective)