[Case] BackCheck Group: Coordinated Control & Concealment Architecture

Forensic investigation under the Follow-the-Threat (FTT) / UPEG methodology documenting unauthorized superadmin access, distribution-list subversion, DFP financial manipulation, document metadata tampering, and active credential-harvesting against BackCheck Group (BCG). Findings establish a coordinated shadow operating environment used for long-term data exfiltration and financial exclusion of the corporate superadmin.