In 2014, at least 644 data breaches have been reported, a 25.3 percent rise from the same period last year, the Identity Theft Resource Center says. Hackers have stolen millions of customers’ email addresses and credit and debit card information given to Target, Neiman Marcus, Michaels, UPS, Dairy Queen, Goodwill and others.

 

Credit and debit card and contact information from more than 110 million Target customers was exposed. Target posted its lowest store traffic in three years shortly after the breach was announced. First-quarter profit fell 46 percent, but the cost to Target, about $140 million, is much less than T.J. Maxx’s in 2006 when it suffered a similar but much smaller data breach.