Must be very, very careful, there are literally thousands of scammers, if not milions around. They are very smart, as even I was nearly caught, not because of any superior intelligence, but we lost the line at the very moment I was going to input my bank security code. My bank account would have been cleaned out totally. So the conclusion is never use your mobile bank Id when speaking to anyone, and certainly not anyone unknown to you. Believe me. Saved my low pension!