The FBI has issued a warning after two states had their election websites hacked. 

States are being warned to take precautions to make sure their sites are secured ahead of the November elections. 

Arizona and Illinois are suspected to be the two states that had their sites hacked, Wired.com reported. 

One of the sites were hacked with a method called SQL injection, Wired.com reported. The technique includes entering code into an entry field on a site that gives the hacker access to the site's server. 

The attacks took place in June and August, according to the FBI post. 

The attacks come at the same time the Democratic National Committee got hacked.