Earlier quoted context omitted.
It looks like their customer service ticketing system is wide open too: http://www.google.com/search?q=www.clkbank.com/viewTicket.ht...
First relevant result refers to the fact that customer's info is available for public viewing. https://www.clkbank.com/viewTicket.htm?key=01.2C096591B7E11E...
ClickBank has to have known about this hole for years and hasn't addressed it.
https://www.clkbank.com/viewTicket.htm?key=01.2C096591B7E11E...