BlackBerry device authentication and IT policy
BlackBerry® device users can set a password for their BlackBerry devices. When the device password is active, the BlackBerry device users must provide the password to access the data and applications. Using device passwords is a good first step to limiting access to your BlackBerry Java® Application on the BlackBerry device.
Administrators can use the IT policies that are provided in the BlackBerry® Enterprise Server to make sure that BlackBerry devices in the organization are password-protected. Administrators can also use IT policies to remotely lock a BlackBerry device, change the password, or remove all of the data.