Sandbox security is nothing but testing a software with controlled environment.
Now, controlled environment can be defined as the environment where an administrator have full control.
Sand box security can be achieved using virtual machines and network analyzers.
How to achieve this,
1. Install Network analyzer in the main OS, e.g. Wireshark.
2. Install virtual machine software in your OS e.g. VirtualBox, Hyper-V etc.
3. Install the required OS in the VM.
4. Install the software that you want to analyze.
5. In the base OS run network analyzer and capture network traffic.
6. Now analyze the data.
By analyzing the network data anyone can simply analyze the software activity. This activity can simply be defined as SandBox security analysis.