EXPRESSVOTE®
Security Features Of The Universal Voting System
Accuracy, security and reliability are the cornerstones of the ES&S development process for each 
voting system we manufacture and sell. From concept to construction, ES&S adheres to industry-
leading standards and complies with rigorous testing schedules set forth by federal and state 
election agencies. Upholding and perpetuating the integrity of our nation’s election process is our 
continuing mission as a company. 
The ExpressVote Universal Voting System utilizes a variety of functions to ensure election data 
and cast vote records are secure. In its current certification as a marking device, no vote data is 
stored in the device. Its system functions are 
only executable during election events, in the 
manner and order intended by election officials 
performing their duties.
As a paper-based voting system, the 
ExpressVote maintains verifiable paper vote 
records for every voter. Records contain both 
written selections and a machine readable 
barcode containing those same vote selections. 
Each vote record is subsequently tabulated 
by an ES&S tabulator (DS200, DS450 or the 
DS850) and securely stored according to each 
jurisdiction’s election laws for recount and 
auditing purposes.
The operating software provides security access 
controls to limit or detect access to critical 
system components, guarding against system 
integrity loss and availability. This maintains 
confidentiality and provides accountability for 
each unit.
The ExpressVote hardware is designed to 
protect against tampering, including during 
system repair or interventions in system 
operations.
System access is limited during equipment 
preparation, testing and operation due to 
physical locks and required access codes. 
These security safeguards cannot be bypassed 
or deactivated during system installation or 
operation.