Counterfeit defenses built on paper have blind spots

Help Net Security

December 24, 2025 at 5:30 AM

Overview

A recent study from the University of Maryland and North Carolina State University raises concerns about the effectiveness of paper-based counterfeit protection systems, specifically those using paper physically unclonable functions (PUFs). These systems authenticate products by relying on unique microscopic variations in the paper's surface. However, the research indicates that these systems can be disrupted or bypassed, potentially allowing counterfeiters to replicate products without detection. This finding is significant as it questions the reliance on paper PUFs in securing product authenticity, impacting industries that use these methods for anti-counterfeiting measures. The results suggest that companies need to reconsider their security strategies to address these vulnerabilities.

Key Takeaways

Affected Systems: Paper-based authentication systems, particularly those using paper PUFs.
Action Required: Companies should explore alternative authentication methods and improve existing paper PUF designs to enhance security.
Timeline: Newly disclosed

Original Article Summary

Counterfeit protection often leans on the idea that physical materials have quirks no attacker can copy. A new study challenges that comfort by showing how systems built on paper surface fingerprints can be disrupted or bypassed. The research comes from teams at the University of Maryland and North Carolina State University, and examines paper based physically unclonable functions, or paper PUFs, which rely on microscopic surface variations in paper to authenticate products. Paper PUFs have … More → The post Counterfeit defenses built on paper have blind spots appeared first on Help Net Security.

Impact

Paper-based authentication systems, particularly those using paper PUFs.

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Newly disclosed

Remediation

Companies should explore alternative authentication methods and improve existing paper PUF designs to enhance security.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

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