PDA Security ?

[Barb]

I am getting a Cingular 8125 PDA. I do plan on accessing the internet a lot with it. I will be using the WiFi and Cingular's wireless internet.

I will be sending and receiving some pictures.

I will pobably not be sending much in the way of word document type files.

Is security something I need to worry about? If so, what do I need to do?

Thanks
Barb