Layered Defense: Balancing Overt and Covert Security Features in High-Value Documents
When designing high-value certificates, diplomas, or legal charters, reliance on a single security element—such as a simple gold sticker—leaves the document vulnerable to modern high-resolution scanning and forgery. Effective document authentication relies on a layered security architecture: combining features visible to the naked eye with hidden features requiring specialized equipment to verify. At diplomafiles.com, we […]