Hacktivist group

For Close System

For Close System (F.C.S) is an Indonesian cyber group with an indexed Telegram channel naming Mr.puttzy and Mr.yoman as founders. The channel advertises alliances with several Indonesian cyber crews. F.C.S also appears in the greetz section of a DR4K7H Cyber Team defacement artifact, supporting ecosystem proximity but not proving that F.C.S executed that intrusion.

INFERENCE (confidence: medium): The current profile should be updated through event-level validation rather than by inheriting capabilities from associated personas, channels or adjacent ecosystems.

Created by iQBlack CTI Team
Contributors 1
Last updated 2026-08-26