U.S. intel: Russia compromised seven states prior to 2016 election

The U.S. intelligence community developed substantial evidence that state websites or voter registration systems in seven states were compromised by Russian-backed covert operatives prior to the 2016 election — but never told the states involved, according to multiple U.S. officials.

Top-secret intelligence requested by President Barack Obama in his last weeks in office identified seven states where analysts — synthesizing months of work — had reason to believe Russian operatives had compromised state websites or databases.

Three senior intelligence officials told NBC News that the intelligence community believed the states as of January 2017 were Alaska, Arizona, California, Florida, Illinois, Texas and Wisconsin.

The officials say systems in the seven states were compromised in a variety of ways, with some breaches more serious than others, from entry into state websites to penetration of actual voter registration databases.

While officials in Washington informed several of those states in the run-up to the election that foreign entities were probing their systems, none were told the Russian government was behind it, state officials told NBC News.