Another hack, another 50GB of creditcard data stolen?

Last week a retirement was announced but now hacker reckz0r claims to have 50GB of creditcard data from both Visa and Mastercard. link
The info/'proof' posted on Pastebin seems to be harvested from an intermediary; Pastebin link but according to reckz0r, it's coming straight from banks, 79 in total. Tweet link
A list of more recent tweets can be found here; Topsy link
Big numbers, big words ('Stay tuned for the downfall of Visa & Mastercard'), let's wait and see for now if it's all true. If true, it seems bigger than Sony though.

 

Meh, seems like a hoax, the data posted on Pastebin by 'Reckz0r', has already been posted on a Palestinian site as early as May 6th; -gaza-hacker.net/cc/showthread-t_38196.html-
It also shows American Express customer data, so unlikely to be from either Visa or Mastercard.
Sorry folks, nothing to see, let's move along.