Caller using mobile number to my mobile said he was from security and my net bank had been attacked and three attempts to log in. $800 transaction made at 10:35am today in the USA. Kept asking me about my phone - is it android or apple. Very suspicious so I said I hadn't used net bank for a month and I only use a home computer but he kept asking about my phone. Told him to send me an email or call my home phone immediately with his details and a land line number for the bank. Had another call 45 minutes later from another mobile 0410 963 299 but hung up when I asked what he wanted.