# Acquire AppSealing device unique identifier_Unity3D
AppSealing SDK generates and manages unique identifier for each device. Customer who use the AppSealing SDK can use the interface of AppSealing to verify the device unique identifier, if necessary. And can be used for the business using the hacking data service provided by AppSealing.
# Show acquire device unique identifier
First, open your Unity project in Unity Editor. Then Select “AppSealingSDK > Libraries” asset and open “Check_iOS_Security.cs” script file by double-clicking it.
Remove line comment at line 45 then you can check the ‘device id’ via the device log and message box.