Now, why would there be a "patched" version? Patches are usually released to fix bugs, vulnerabilities, or add features. The patched version might be an official patch from Symantec or, more likely, a third-party modification. Official patches from Symantec would be available through their support channels, so I should emphasize that. But if someone is patching it themselves, there could be security risks, especially if it's a third-party mod. Third-party patches might introduce malware or backdoors. I need to warn users about that.