Why using online banking is dangerou

whether using online banking is dangerou? I should beware of it?

many people ask that.the answer is :yes.there are Number of Trojan, they can record your keyboard input after you enter account and password on a online shop.so there is a certain danger.Although can instal some confidential plug-in, but no one assurance that it can done well.If your account have a lot of money, and you want online shopping, please check your computer with anti-virus software.