The Ohio Secretary of State website that, among other things, handles voter registration and election information, has been hacked.
According to the official statement (link above) by the Secretary of State Jennifer Brunner...
Due to security concerns experienced by the Secretary of State’s website, full functionality of the website has been suspended to protect the integrity of state records and data. Full functionality will be restored when we are assured that all data has been protected to acceptable levels of security.
Note that this could have been pretty nasty - imagine what would happen if somebody messed, say, with the "Where do I vote?" page... However, real nastiness is after the jump.