HACKERS CRACKED into online shoe powerhouse Zappos.com, stealing the personal information of 24 million customers, official said. Shoe shoppers were shocked to check their inboxes Monday to find notices from the company telling them that their information had been compromised and asking them to change their passwords. In the email to customers, the company said “there may have been illegal and unauthorized access” to customer information including names, email addresses, billing and shipping addresses, phone numbers and the last four digits of customers credit card numbers.