The breach, which involved the names, addresses, birth dates and last four digits of the Social Security numbers of 70,000 voters, was first mentioned in an indictment of 13 Russian operatives last summer. By GRANT MORGANgmorgan@capitolnewsillinois.com SPRINGFIELD — Special counsel Robert Mueller's recently released report on Russian interference in the 2016 election repeated what Illinois already knew: that it suffered the worst election-data breach of any state in the country when Russian agents stole the personal information of more than 70,000 voters. read more