The text describes how Denuvo, an anti-piracy software, protects games by modifying code within a virtual machine (VM) to validate the game's authenticity. Denuvo relies on constants within the game code and modifies instructions in the VM, selectively altering specific instructions to achieve its anti-piracy goals. The software also uses conditional jumps to control the flow of execution based on certain conditions. If a particular instruction isn't essential for the game's execution, it may be skipped even with a corrupted or invalid license, potentially revealing weaknesses in Denuvo's protection. Overall, the text highlights the complexity and selectivity of Denuvo's protection mechanism and suggests potential vulnerabilities that hackers and crackers could exploit.