Are 3G dongles secure

A reader asks if the security of a 3G dongle is sufficient for all normal web use.

If only it were that simple. Far too many people use weak, guessable or the same passwords and PINs for everything. Many are careless and write them down and leave them lying around or store them on their laptops and smart phones, which are vulnerable to loss and theft. Using insecure and shared computers is another common mistake, as is responding to spam and phis

Source:
http://www.telegraph.co.uk/technology/advice/8870963/Are-3G-dongles-secure.html