Just yesterday Apple's executives went on the offensive against retailers that refused to play by the Cupertino company's rules with veiled threats. So it is ironic at best that today, Wal-Mart's alternate-to-ApplePay mobile payment system - CurrentC - has been hacked. The company explains "within the last 36 hours, we learned unauthorized third parties obtained email addresses of some" of their clients...and "no other information." From CurrentC