Target says data from 30 million more cards may have been exposed to hackers. Names, mailing addresses, phone numbers, and email addresses of customers may be compromised. Target in mid-December revealed that hackers had broke into its systems and accessed data on 40 million cards. Hackers using the stolen information can now target victims with highly sophisticated spear-phishing attacks. Target says it expects fourth-quarter sales and earnings results to be substantially lower than the expected before the data breach was discovered before it was discovered.”]