A Sandbox is a secure, isolated environment or container that allows software applications, processes, or code to run in a restricted and controlled manner without affecting the underlying operating system or compromising system integrity. Sandboxes provide a safe testing environment for executing untrusted or potentially malicious software, analyzing suspicious files, or evaluating unknown code behavior, while preventing it from accessing sensitive resources, modifying system settings, or spreading malware. Sandboxing techniques include virtualization, containerization, and application sandboxing, which create separate instances or compartments for running untrusted code safely.