Discuss the vulnerabilities along the chain-of-custody of person’s vote

 
You have been hired as a CYBER security analyst to assess the vulnerabilities of the electronic voting machines for the city of Metropolis. Some of the voting machines are connected directly to the Internet, while the majority of them are not. However, some may have WI-FI and/or BLUETOOTH capability. All have some form of removable data devices.
An electronic voting machine is simply just another Internet-of-Things endpoint that requires the same diligence in securing it as would any other network endpoint node.
Discuss the vulnerabilities along the chain-of-custody of person’s vote, from button press, to off site data storage.