Just heard on Radio 5 that mac users are being advised to use anti virus software as there is some online banking threats out there and if Mac users are targeted without antivirus the banks won't help them (information received 2nd hand via my dad so not sure how accurate it is).
So as a Mac user I need to look at my options. Is there a good free antivirus available or would I be better advised to buy one and if so which one?