Hackers may have breached voter registration databases for election systems in at least two US states. The FBI is investigating the cyberattacks on the official websites for voter registration system in both Illinois and Arizona. The attacks against the state election boards came weeks after the DNC hack that leaked embarrassing emails about the party, leading to the resignation of DNC Chairwoman Debbie Wasserman Schultz. It’s believed that the hacks were carried out to disturb the election process either by altering voting totals in the database or by modifying the voter registration page.
Source: https://thehackernews.com/2016/08/election-system-hack.html