http://krebsonsecurity.com/2013/12/s...g-data-breach/

Nationwide retail giant Target is investigating a data breach potentially involving millions of customer credit and debit card records, multiple reliable sources tell KrebsOnSecurity. The sources said the breach appears to have begun on or around Black Friday 2013 — by far the busiest shopping day the year.
Definitely check your statements if you shopped at Target around that time. It's only coming to light now that people are getting this month's bill, no doubt. I don't shop at Target but I know many who do, and some HAVE caught some suspicious activity...