When we do online transactions using our credit / debit cards or online bank account there is a high possibility of your sensitive details stolen by hackers. But even in that case if your card or account has activated an OTP (One Time Password) feature they can't harm you. As you know OTP is a temporary code which is sent to your registered mobile number and you need to enter it to complete the transaction. So it ensure double safety. Do you use OTP facility when making online payments?