Don't tell anyone but, i'm really Spiderman, and when i'm not busy giving mary-jane, upside-down-type smoochies,i like to trust rendo' to keep my Peter Parker identity top secret!!! 

in other news, dispite making many webs, and visiting websites, like this one, i find that i still can't actually catch any flies!!

I'm pretty sure rendo' is about as secure as you can get at the moment, but if you are worried about credit card details or something, then why not open a seperate account for your online purchases, that way you will only ever have enough money in that account to cover the cost of the purchase you intended to make online!!