I got a new debit card from my bank, jumped online, to activate my new card.

I see a picture of my card, with the last 4 digits of my account number show. A big "activate" button right next to it. Sure thing. Click the button, and guess what piece of information I need to verify I am the true owner of the card. Fucking last four digits.

Fucking hell - you just showed me the digits a page ago.