I don't pay any bill online especially a single payment bill. I call and they take a credit card or PayPal or we don't do business.
I know its still a crap shoot. but I feel better.
I have a separate account I use for paypal and online transactions (on the rare occasion that I do buy on line)....
I transfer just enough money or slightly more to cover my purchases into that account right before I make the transaction.... That way if I get hacked, they can't spend more than $20 or less on me if they do...