American Honda Motor - 2010
A Honda vendor maintaining a customer mailing list for My Acura and Honda's Owner Link websites was hacked. Names, email addresses, vehicle identification numbers and user IDs may have been exposed. There is speculation that this breach is connected to a hack of Silverpop that exposed the information of McDonald's and deviantART subscribers.UPDATE (1/24/11): Around 2.2 million Honda customers had their information exposed. Around 2.7 million Acura customers had their email addresses exposed, but names and other information were not breached.