A shocking statistic, but one that possibly comes from a lack of knowledge?  Internet security, or lack there of, is a big issue, especially when working over public WiFi.  You may as well stand in a crowded area, hold up your bank card and scream out the PIN number at the top of your voice.

I recently wrote an article on the subject, which I would recommend having a read though.  A few facts may surprise you:

Are you aware of the security risks that public WiFi pose?