CHICAGO (AP) — Chicago election officials say personal data, including partial Social Security numbers, were exposed online for approximately 1,200 people.
The election officials denied a wider breach alleged by a computer security firm Tuesday.
Chicago Board of Elections Commissioners spokesman Jim Allen says the firm, Forensicon, is exaggerating the problem.
Forensicon announced Tuesday it had uncovered a 'massive security breach' affecting up to 1.7 million registered voters.
Allen says a mistake by the election authority caused a database to be exposed online. The database included names, addresses, drivers' license numbers and the last four digits of Social Security numbers of around 1,200 people who had applied to work at Chicago polling places on Election Day.