Attempting to download cracked or illegally activated versions of ArcGIS 10.9.1 poses severe risks, including the introduction of malware, ransomware, and system instability [1, 2]. Using unlicensed software violates Esri's legal terms, prevents access to security patches, and can lead to significant operational disruptions and legal consequences. Secure, legitimate alternatives include ArcGIS for Personal Use, student licenses, free trials, or open-source solutions like QGIS.