How did Iran get US voters’ email addresses?

The FBI accused Iran of trying to intimidate voters in Florida and Alaska by sending emails threatening their vote.
2:52 | 10/23/20

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Transcript for How did Iran get US voters’ email addresses?
In the meantime, to that new warning about election interference. U.S. Authorities say Russia and Iran have obtained voter registration information and that Iran has used that information to send threatening messages to voters. Tonight, state and local elections officials have been warned to patch their systems. And here's our chief justice correspondent Pierre Thomas. Reporter: Tonight, new details about alleged covert efforts by Russia and Iran to weaponize illegally obtained information about American voters. We are not going to tolerate any criminal activity that threatens the sanctity of your vote. Reporter: Sources telling ABC news that two of America's primary adversaries successfully penetrated voter registration databases at the local level along with gleaning voter data from publicly available sources. We have already seen Iran sending spoofed emails designed to intimidate voters, incite social unrest. Reporter: While authorities see Russia as the greater threat, intelligence officials point to those menacing emails allegedly sent from Iran to democratic voters in Florida this week, under the name "Proud boys." One saying, "You are currently registered as a Democrat. You will vote for trump on election day or we will come after you." It was scary and knowing that they're using this information and blasting out emails to intimidate people is not comforting. Reporter: Some of the proud boys, which critics describe as a racist organization, have openly supported president trump's re-election. At the first debate, the president failed to forcely denounce them. Proud boys, stand back and stand by. Reporter: Bipartisan alarm about it. They want to sabotage our democracy. Reporter: Bipartisan alarms sounding off about the attacks but dni John Ratcliffe accused of playing politics when he failed to make any reference to the threats against democratic voters and portrayed president trump as a victim of an Iranian smear campaign at a hastily arranged press conference. I think we have to be very careful about any statements coming out about the election from the intelligence community at this time. Let's get to Pierre Thomas in Washington tonight. Behave two questions for you tonight. Federal authorities have reached out to local agencies, encouraging them to patch any holes in their system. And this question, if adversaries were able to get in, I know authorities are now trying to reassure Americans that their votes will be safe. Reporter: Yes, David. Federal authorities reached out to state officials warning them to be on alert. But all my sources are saying none of this should effect your ability to vote. There's no evidence bad guys can impact the systems that record your vote, David. All right, Pierre Thomas, we know you'll stay on this. And with early voting under way across the country and with so much concern how to vote safely during this pandemic, again, our partners at fivethirtyeight have put together an easy to use state-by-state guide. You can go to

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