I would like to warn everyone here, that it is not always what you download but where you register. For example; with only two edits to the vbulletin forum software your passwords can be logged in plain text. Watch out for sites that do not keep you logged in ie: have to log in each time you visit.
On sites you are unsure of, use a dummy account. Keep your passwords strong and diverse.
On sites you are unsure of, use a dummy account. Keep your passwords strong and diverse.