I wonder if this confirms my idea that some banks are just cancelling and reissueing ALL thier cards - what a nightmare for them and for us

Now with the highly publicized hacker attack yielding info (including cc) on some of the worlds leaders at economic conference - what anti- hacker company stock should I be investing in (not a real queston)?
I guess it doesn't matter how criminals want to work just now they are inconviencing/ causing economic loss (just to prevent fraud even) on a much larger scale than ever before ;(