The tengu ransomware group listed GSM PORTAL TEKNOLOJİ HİZMETLERİ TİC. LTD. ŞTİ on its data leak site on 2026-01-18. Country: TR Sector: Technology Domains named: gsmportal.com.tr Claim as published on the leak site: This is a small to medium-sized Turkish company officially registered in Istanbul, operating in the GSM telecommunications technology and technical services sector. It has complete official documentation but is not very active digitally