According to a new analysis by CNNMoney, 47 percent of Americans have  had their personal information exposed by computer hackers in the past 12 months. Among the higher-profile hacks that have occurred during that span are....

70 million Target customers' personal information, plus 40 million credit and debit cards
33 million Adobe user credentials, plus 3.2 million stolen credit and debit cards
4.6 million Snapchat users' account data
3 million payment cards used at Michaels
1.1 million cards from Neiman Marcus
"A significant number" of AOL's 120 million account holders
Potentially all of eBay's 148 million customers' credentials