After scandal, 42 of the 55 councilors say they are in favor of presence only with digital (O Estadão de São Paulo)
Google Chrome Translation (with slight edits)
After [this newspaper] uncovered fraud in the attendance record at City Hall, 42 of the 55 councilors said they were in favor of attendance at plenary sessions being recorded only by fingerprint. To change the bylaws of the house, you need the backing of 28 MPs.
The current system relies on passwords.