A second class-action suit has been filed in federal court in Houston against Comptroller Susan Combs on behalf of 3.5 million Texans whose personal information was accidentally exposed online.

Attorney Muhammad Aziz told the Houston Chronicle that the plaintiffs are seeking a $1,000 penalty "for each of these individuals whose privacy was violated by the comptroller."

Combs' office said April 11 that it discovered it mistakenly posted the data, including names and Social Security numbers, on a publicly accessible server for months.

Combs has publicly apologized, blaming human error for the data release, and has announced free credit monitoring for anyone who's been affected.

She said she cannot comment on litigation.