Security Limitations

Evolving Threat Landscape

Cyber threats continuously evolve. Attackers develop new techniques, vulnerabilities are discovered in existing systems, and previously secure cryptographic algorithms may become vulnerable to new attack methods, including quantum computing advances. CUI Labs products are designed to mitigate known threats but cannot guarantee protection against future, unknown attack vectors.

Implementation Dependencies

The security of CUI Labs products depends on proper implementation, configuration, and deployment. Misconfiguration, integration errors, or deployment in insecure environments can significantly reduce or eliminate the security benefits of our products. Users are responsible for following implementation best practices and security guidelines.

Human Factors

Security breaches often result from human error, social engineering, insider threats, or policy violations rather than technical vulnerabilities. No technology can fully eliminate risks associated with human behavior. Organizations must implement comprehensive security awareness training and access control policies.

Supply Chain Security

CUI Labs products may depend on third-party libraries, frameworks, operating systems, and hardware. Vulnerabilities in these dependencies can affect the security of our products. While we implement supply chain security best practices, we cannot guarantee the security of all third-party components.

Zero-Day Vulnerabilities

Previously unknown vulnerabilities (zero-days) may exist in CUI Labs products or underlying systems. We maintain a responsible disclosure program and issue security updates promptly, but there may be a window of exposure between vulnerability discovery and patch deployment.

Post-Quantum Cryptography (PQC)

While CUI Labs implements NIST-standardized post-quantum cryptographic algorithms (CRYSTALS-Kyber, CRYSTALS-Dilithium, SPHINCS+), these algorithms:

• Are relatively new and may have undiscovered vulnerabilities
• Require larger key sizes and computational resources than classical cryptography
• May be subject to future cryptanalytic advances or quantum computing breakthroughs
• Are not immune to implementation flaws, side-channel attacks, or configuration errors

Quantum Key Distribution (QKD) Integration

CUI Labs products that integrate with quantum key distribution systems are subject to:

• Physical security requirements for quantum channels
• Distance limitations of QKD systems
• Dependence on the security of classical authentication channels
• Potential vulnerabilities in QKD hardware implementations

API and Integration Security

CUI Labs APIs and SDKs provide security primitives, but the security of applications built using these tools depends on proper usage. Developers are responsible for implementing secure coding practices, input validation, authentication, authorization, and other application-level security controls.

Cloud and SaaS Deployments

For cloud-hosted or SaaS deployments of CUI Labs products, security depends on the underlying cloud infrastructure, network security, and shared responsibility model. Customers are responsible for securing their data, access credentials, and compliance with data residency requirements.