How Hackers Stole 200,000+ Citi Accounts Just By Changing Numbers In The URL - The Consumerist
"So if the URL was something like citibank.com/user/12345, all you had to do was change it to citibank.com/user/123456 and you had access to all of their account information."
"So if the URL was something like citibank.com/user/12345, all you had to do was change it to citibank.com/user/123456 and you had access to all of their account information."