Workstation Screensaver Lock Timeouts

[<saliskor () cyberus ca>]

The security policy at one of my clients dictates that all workstations will activate password protected screensavers 
after a period of user inactivity.  The policy does not state what the timeout period is, in order to allow the 
organization some flexibility.

My questions are:

Is there an industry norm for the timeout? What timeout do you think is appropriate for a medium security enterprise 
such as Military (unclassified workstations) law enforcement, Law offices, Financial institutions, etc. The building is 
physically secure, although members of the public, clients, etc are allowed access with loose escort, and may or may 
not be left alone in an area for short periods.

Any opinions or suggestions are appreciated.

Rick 

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