Brazen post thieves rifled through a pensioner's mail to find her new bank card and PIN number before withdrawing hundreds of pounds from her account.
They targeted the 72-year-old's house, in the Delves area of Walsall, twice in a manner of days - lifting the letters straight out of her porch within minutes of the postman dropping them off.
CCTV images of men suspected of being involved in the theft have now been released by police.
The woman spotted one man at her porch during the thieves' second visit on April 19 and challenged him, but he told he was a delivery driver collecting a parcel left at the wrong address and drove off in a silver estate, possibly a Hyundai Matrix.
Det Ch Neil Cunnington said the card had been blocked after two withdrawals.
Witnesses or anyone who recognises the men are urged to call Bloxwich police on 101, or Crimestoppers on 0800 555111.