You know why you should always keep a close eye on your credit card activity? Because hackers can target any kind of establishment, whether they're huge corporations, mom-and-pop shops or, in this case, grocery chains. American chains SuperValu and Albertsons have just revealed that digital brigands recently broke into their computer networks and, worse, were able to access the portions where customers' credit or debit card details are stored. SuperValu owns Cub Foods, Farm Fresh, Hornbacher's, Shop 'n Save, and Shoppers Food and Pharmacy -- 180 outlets of which were compromised -- while Albertsons is one of its former properties. The security breach happened entirely on SuperValu's end, though, as it still provides Albertsons with IT services despite selling it back in 2006.