Yes. The Two-Factor Authentication methods are:
SMS PIN authentication – before voters access the ballots they are prompted to send themselves a PIN via SMS. When the correct PIN is entered voters can access the ballots.
Personal data – voters can be prompted to enter personal data such as date of birth, before they can vote.
PIN code – voters are prompted to enter a unique pre-determined PIN before they can vote. BigPulse has a PIN generator.
Email validation – voters are prompted to validate their email before they can vote.