Sandbox environments are special isolated spaces where unknown files or code are run safely. The process starts by receiving the file, placing it inside the sandbox, and running it isolated from the real system. While running, the sandbox watches the code's behavior to detect any harmful actions. If a threat is detected, the sandbox blocks the file and alerts the system. If no threat is found, the code is allowed to run safely. After testing, the sandbox cleans itself to remove all traces and prepare for the next file. This method helps keep computers safe from viruses or malware by testing suspicious files without risk.