Sandbox
From Computing and Software Wiki
A sandbox (in terms computer security) is a security mechanism used on servers and personal computers to execute third-party programs that are unverified or have a non-trusted source. A sandbox allows a guest program to run under tightly-controlled conditions, which typically prevent the guest program to write to the host computer’s hard drive and provide a highly restricted network access. Some sandboxes also disallow the guest program to read from the host’s input devices as a means to prevent malicious programs from reading sensitive data like passwords, network keys and credit card information.