Rockstar had engineered the game so that even single-player modes felt the need to "phone home" to the server. 3DM had to analyze the assembly code of the game, find where the security checks occurred, and patch them out. However, Denuvo encryption made this incredibly difficult. It obfuscated the code, making it hard to read.
Despite being obsolete, search volume for persists. The reasons fall into three categories:
Given the popularity of this keyword, fake "V4" cracks flooded torrent sites filled with adware. The authentic had specific fingerprints: