Some cameras have WiFi built-in. Specific models of camera from Nikon, Kodak, and others can transmit their photo files to your computer through wireless networking.
Problem is that some photo Web sites are now reporting that this represents a security risk. More details are to come, but I suspect the problem is that the camera makers did not implement WiFi encryption, which prevents outsiders from hijacking the wireless stream of data.
I think the risk is low, because of obscurity. Hijackers are not looking for wireless cameras to intercept because they are so rare -- just like very few viruses affect Macintosh computers. Still, it's a news item to be aware of.
If your camera has WiFi, check if it has security and encruption settings, and then set them up for the same system your office/home WiFi system uses. Your home/office WiFi does have security set up, doesn't it?