NFC Selective Disclosure: Data Minimization for eIDs
Blog post from Didit
Excluded from normalized aggregate trends after staff review: 3056 posts were attributed to March 2026; 671 shared March 14, 2026. The preceding six-month median was 13.5 posts.
Review evidence: 3,056 posts in March 2026; 671 shared March 14, 2026; preceding six-month median 13.5. Reviewed August 9, 2026.
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NFC selective disclosure is a technology that enables users to share only specific, necessary data attributes from their electronic identity documents (eIDs) or ePassports, thereby enhancing privacy and ensuring compliance with data minimization principles, such as those mandated by GDPR. This process uses cryptographic protocols like Password Authenticated Connection Establishment (PACE) and Extended Access Control (EAC) to securely authenticate and transmit data, protecting it from unauthorized access and tampering. By allowing granular control over personal information, NFC selective disclosure facilitates various practical applications, including age verification and digital onboarding, while improving user privacy, security, and regulatory compliance. Companies like Didit leverage this technology to offer solutions that integrate NFC document reading into verification workflows, ensuring secure and private identity verification processes that align with modern privacy regulations.
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