MITM-PixNFC. Technical article shows how a MITM attack against Pix tap-to-pay can swap the dynamic QR during APDU exchanges (UPDATE BINARY), silently redirecting payments without breaking crypto. We detail the flow, a PoC with NFCGate, CRC recalculation, and defenses: per-transaction signature, nonce, timestamp, counter, and strict AID/offset checks.

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.