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(From official FIDO Alliance specs, W3C WebAuthn Level 3, Apple/Google/Microsoft implementations – December 2025) What are FIDO Passkeys? FIDO passkeys are passwordless authentication credentials based on the FIDO2 standard (WebAuthn + CTAP2). They use public-key cryptography to replace...

(Real data from Juniper Research, Goode Intelligence, EMVCo, Mastercard, Visa, and industry reports – December 2025) Biometric authentication in payments uses unique biological traits (fingerprints, facial recognition, voice, iris, palm vein) to verify identity during transactions. It's the...

(Real-world data from EMVCo, Juniper Research, Statista, Visa/Mastercard reports – December 2025) NFC (Near Field Communication) and QR code payments are the two dominant contactless methods in 2025. NFC = tap-to-pay (Apple Pay, Google Pay, Samsung Pay). QR = scan code (Alipay, WeChat Pay, Pix...

(Real mechanics, major systems, security, and global adoption – December 2025) QR code payments are the dominant mobile payment method in 2025, especially in Asia-Pacific (China, India, Southeast Asia). They use 2D barcodes to encode payment data – scanned by smartphone camera to initiate...

(From official Tencent/WeChat Pay docs, UnionPay specs, and security reports – December 2025) WeChat Pay (微信支付) is Tencent's mobile payment platform, dominant in China with >1.2 billion users and >50 % of mobile payments market share. It integrates QR code payments, in-app, mini-programs, and...

(From official Huawei docs, UnionPay specs, and security reports – December 2025) Huawei Pay (also called Huawei Wallet in some regions) is Huawei's mobile payment service, launched in 2016 in partnership with UnionPay (China's dominant card network). It's available on Huawei/Honor devices...

(From official Samsung Pay/MST docs, EMVCo, Visa/Mastercard token specs – December 2025) What is Samsung Pay Tokenization? Samsung Pay uses device tokenization to replace the real card number (PAN) with a cryptographic token called a DPAN (Device Primary Account Number) or Samsung Pay token...

(From official Google Pay API docs, EMVCo, Visa/Mastercard token specs – December 2025) What is Google Pay Tokenization? Google Pay uses device tokenization to replace the real card number (PAN) with a cryptographic token called a DPAN (Device Primary Account Number) or Google Pay token. This...

(From Apple Pay documentation, EMVCo, Visa/Mastercard token specs – December 2025) What is DPAN? DPAN stands for Device Primary Account Number. It is the tokenized card number unique to a specific device (iPhone, Apple Watch, Mac) in Apple Pay. Key Facts: DPAN is not the real PAN (Primary...

(From EMVCo, PCI DSS, Visa/Mastercard/Amex/Discover token specs, Apple/Google Pay – December 2025) Tokenization is the #1 security feature in modern payments – replacing sensitive card data (PAN) with a non-sensitive token that has no value if stolen. Real 2025 stats (EMVCo + Visa reports)...

(From NIST, EMVCo, Apple/Google/Samsung docs, and industry reports – December 2025) Current Status: As of December 2025, no major mobile payment system (Apple Pay, Google Pay/Wallet, Samsung Pay) has fully deployed post-quantum cryptography (PQC) in production. Mobile payments rely on EMV...

(From EMVCo, NIST FIPS 204, and industry reports – December 2025) Current Status: As of December 2025, ML-DSA is not integrated into production EMV payment cards. EMV still uses RSA/ECC for offline data authentication (DDA/CDA) and symmetric keys (3DES/AES) for session cryptograms. ML-DSA (NIST...

(From EMVCo, Visa, Mastercard, NXP, and industry reports – December 2025) Current Status: As of December 2025, ML-KEM is not integrated into production EMV payment cards. EMV still uses RSA/ECC for offline authentication (DDA/CDA) and 3DES/AES for session cryptograms. ML-KEM (NIST FIPS 203...

(From EMVCo, Visa, Mastercard, NXP, NIST, and industry reports – December 2025) Current Status of PQC in EMV (December 2025): No full PQC deployment yet – EMV still relies on RSA/ECC for offline authentication (DDA/CDA) and symmetric keys (3DES/AES) for session cryptograms. Migration is in...

(From EMVCo, Visa, Mastercard, NXP, AWS Payment Cryptography docs – December 2025) EMV cryptograms (ARQC/TC/AAC) use symmetric encryption for session keys and MAC generation. The two main algorithms are 3DES (Triple DES) and AES. In 2025, 3DES is still dominant but deprecated – AES is the...

(From EMV Book 2, Visa VIS, Mastercard M/Chip, and real implementation – December 2025) What is ARPC (Authorization Response Cryptogram)? ARPC is the issuer-generated cryptogram sent back to the card after validating the ARQC. It proves to the card: The issuer approved/declined the transaction...

(From EMV Book 2, Visa VIS, Mastercard M/Chip, and real implementation – December 2025) What is an ARQC? ARQC (Authorization Request Cryptogram) is the dynamic, one-time MAC (Message Authentication Code) generated by the EMV chip during an online transaction. It proves to the issuer: The card...

(From EMVCo specifications, Visa/Mastercard/Amex/Discover docs, and real-world implementation – December 2025) EMV (Europay, Mastercard, Visa) chip technology is the global standard for secure payment cards. Introduced in the 1990s and mandated worldwide by 2015–2020, it replaced magnetic...

(From the latest security research and reports – December 2025) Near Field Communication (NFC) technology powers contactless payments, access control, and data exchange in billions of devices worldwide. In 2025, with over 80% of in-store transactions using contactless methods (EMVCo data), NFC...

(From official EMVCo specifications, bulletins, and industry reports – December 2025) What is the EMVCo C-8 Kernel? The EMV Contactless Kernel Specification v1.0 (full title: EMV Contactless Specifications for Payment Systems – Book C-8 – Kernel 8 Specification) is EMVCo's unified, royalty-free...