I dont know how you are using your forms, but You could store company information in a database (or keep supporting file on a server, not locally) so that when/if the information is updated it is done globablly, and that you don't have old data out there. Also making sure that the data is only available to use in the forms while on the intranet. I am no to sure on the specifics of infopath, but I do not think that those files are encrypted.
Always hope that the laptop is not stolen! It is best to have encryption on the laptop anyways, expecially if the laptops leave the work zone. Using a 3rd party software to do this would best be suited, as other forms of protection should be taken(something simple as user agreements, and computer log ons).
Welcome, this place has great info.