Mexico’s government wants you to believe that handing over your fingerprints, iris scans, and facial data is voluntary. President Claudia Sheinbaum has said so publicly.
But by July 2026, every one of the country’s roughly 130 million mobile phone lines must be linked to a biometric national ID, and unregistered numbers get suspended on July 1.
Refuse the biometric credential and lose your phone.
The CURP Biométrica upgrades Mexico’s existing population registry code, the Clave Única de Registro de Población, from an 18-character alphanumeric string into something far more personal. The updated system captures face, fingerprint, and iris biometrics, packages them with a QR code and digital signature, and produces what amounts to a mobile-readable identity document tied to your body.
Registration happens at RENAPO and Civil Registry offices, where staff scan all ten fingerprints, both irises, take a facial photograph, and record a digital signature. You’ll need a valid photo ID, a certified CURP, and an original or certified birth certificate just to walk in.
The government has framed this primarily as a tool for addressing Mexico’s crisis of forced disappearances. The biometric data feeds into a Unified Identity Platform connecting the National Population Registry with the National Forensic Data Bank and records held by prosecutors and intelligence agencies, enabling real-time identity searches. That’s the stated purpose.
The actual system being built does considerably more than locate missing people. The legislation gives broad access to biometric and personal information to law enforcement, intelligence agencies, and the National Guard, and the law doesn’t require authorities to notify citizens when their data gets accessed. You won’t know who’s looking at your biometrics, or why, or how often.