Lost Credit Card Replacement - Received the same card in the mail?

I find it very suspicious that twice, once with MBNA and the other time with Scotiabank, I've requested a replacement card and an identical card arrives in the mail. Neither times did I actually lose the card, but I did report it as lost in order to get a new card. Once to get the new look Smart Cash card and once to upgrade to a PayWave version of my Scotia card. What I mean by identical is that the card number is the same, the expiry date is the same, and the CID/CVV is the same. This is a huge safety risk in my opinion because had I actually lost the card in public, someone could easy use the card to do some online shopping. Of course I advocate checking your purchases regularly, but some people just don't. I know for a fact that I can interchangeably use both of my Smart Cash cards (as I've recently switched back to the old look because it's nicer).

Opinions? Similar stories?