Multiple law enforcement sources tell CBS News homeland security correspondent Jeff Pegues that more U.S. state election databases have been hacked than previously thought.
According to sources, a total of about 10 states have had their systems probed or breached by hackers, similar to what happened in Arizona and Illinois.
CBS News has learned that government officials are increasingly concerned about Russian efforts to disrupt or influence the 2016 presidential election.
Arizona and Illinois have already experienced attempted hacks of their voter databases and earlier this month, U.S. officials said they are expanding their inquiry because investigators believe additional states have also seen hackers successfully probe their election systems.
More than a half-dozen cybersecurity experts told CBS News’ Rebecca Shabad it’s clear Russia, which has among the best hackers in the world, is trying to influence the U.S. election and that the chances of more cyberattacks between now and Election Day are high.