Why, indeed? Paper checks are a security hole and an inconvenience wrapped into a handy slip of paper! The main advantage of the Giro Transfer method (it seems

Why, indeed? Paper checks are a security hole and an inconvenience wrapped into a handy slip of paper! The main advantage of the Giro Transfer method (it seems) is that it's a PUSH rather than a PULL. With credit cards or checks, I give you full run of my account to pull funds when you like. Feel free to request as much money as you like, and if there's a problem, I've got to fight to prove that it wasn't an authorized request. With a push request, I have account info for you, but all I can do is put money in. You never get to pull money indiscriminately. Sounds like a big win to me.