Chapter 10 Install and System Administration for FortiOS 5.0 : FortiGuard : Security tools : FortiSandbox
  
FortiSandbox
A FortiSandbox unit can be used for automated sample tracking, or sandboxing, for files from a FortiGate unit. This allows suspicious files to be sent to be inspected without risking network security. If the file exhibits risky behavior, or is found to contain a virus, a new virus signature is created and added to the FortiGuard antivirus signature database.
Cloud Sandbox can also be used for sandboxing if you have an active FortiCloud subscription. For more information, see “FortiCloud”.
See Also
URL lookup
IP and signature lookup
Online virus scanner
FortiGuard Services
Antivirus and IPS
Web filtering
Email filtering
Security tools
Troubleshooting