Complex sentence: Critics of DRE Machines claim that there is an increased risk of electoral fraud and if the security of the DRE source code software is compromised, election results could be tampered with in an undetectable fashion.
Split into simpler sentences: Critics of DRE Machines claim that there is an increased risk of electoral fraud. If the security of the DRE is compromised, election results could be tampered with in an undetectable fashion.