Consequently, Searching for one often leads to third-party websites offering dubious "portable" or "pre-downloaded" versions. Using these is highly discouraged. Such unofficial packages may contain outdated, unstable builds; lack critical components; or, worst of all, harbor malware or spyware. The security risks far outweigh any perceived convenience. Developers must remember that UE4’s source code is accessible on GitHub (via Epic’s organization), but that requires Visual Studio compilation and is not a plug-and-play installer.