The main difference is that if someone steals your debit card info and goes on a spending spree, that money is gone from your account until the fraud folks at your bank can deal with it.
This may result in overdrafts from other automatic payments or not being able to pay for things you need, until the money is restored to your account.
This may result in overdrafts from other automatic payments or not being able to pay for things you need, until the money is restored to your account.