Downloading or using "keygens" (activation code generators) is strongly discouraged and often illegal. These tools are frequently used as a delivery method for that can compromise your personal data. If you own Splinter Cell: Blacklist
Beyond the technical risks lies a philosophical question. Games like Blacklist are the result of years of labor by hundreds of developers. While the "pirate’s life" offers a shortcut, it strips away the support system that allows for future sequels. Interestingly, the game's theme of global security and cyber-warfare is mirrored in the very act of downloading a keygen; you are essentially opening a "backdoor" into your own digital life. Conclusion