Security Vulnerability in a Voting System
Schneier discusses a vulnerability that allows recovery of ballot order, exploited with AI tools. He analyzed voter behavior in Georgia using publicly available data.
Intelligence analysis by Qwen 2.5 (3B)
Schneier reveals a vulnerability in voting systems that can reveal the order of ballots cast, potentially leading to voter identification and family drama.
A bad guy can find out who voted for whom in an election. This could make families upset and reveal private information.
Analysis
The Vulnerability
The vulnerability allows someone to recover the order of ballots cast, as described in the original vulnerability paper. The CVR (cast-vote record) file, containing every ballot and its selections, is publicly available for verification purposes. The CVR file is not accessible to the public, but the order of ballots can be inferred from the data.
Analysis
Schneier used two data sources: the early-voting list for each county and the CVR file. He pointed a coding agent to the original vulnerability paper and supplied it with the necessary data. The agent was able to analyze the voter behavior in Georgia, one of the 21 states using affected scanners.
Implications
The vulnerability could lead to the identification of individual voters and potentially cause family conflicts. It also raises concerns about the design of the voting system itself, as the order of ballots is a public piece of information.
Future Steps
The article does not provide specific recommendations for addressing the vulnerability. However, it suggests that the CVR file should be made more secure to prevent such vulnerabilities from occurring in the future.
Key points
- Vulnerability allows recovery of ballot order
- Vulnerability is in publicly available CVR file
- Could lead to family conflicts and voter identification
- Needs better design and security in future voting systems
- No public access to CVR file, but order can be inferred
Future voting systems can be designed to protect the order of ballots better, ensuring voter privacy.
If not addressed, this vulnerability could lead to more family conflicts and undermine public trust in elections.


