Salvador Mendoza

For years, a large part of my payment systems research has followed a similar process.

Card Relay Internals How a physical smart card connected to a desk-side reader can be made to communicate with a remote terminal as if the card were connected locally.

Today I’m launching SM Academy — a cybersecurity training platform where every course is taught from primary sources.

Chapter 1: The Instrument Does Not Exist First in a series on chip payments, the questions you cannot answer by reading, and the hardware you end up building instead.

The Packet Boundary Flag (PBF) in NFC Controller Interface (NCI) devices plays a crucial role in managing the transmission of fragmented data packets between the NFC controller and the host device.

I’m thrilled to announce that my upcoming training on payment systems: the art of analyzing magnetic stripe information, NFC, EMV, and tokenization technologies will be at Black Hat this year!!

Intro Flipper Zero is a flexible, portable and popular tool that implements different technologies: NFC Bluetooth Transceiver RFID … Focusing on Bluetooth, the device utilize the dual-core and multi-protocol STM32WB55RG.

Reading SFIs records is a requirement in the EMV transactions to request specific card elements to process EMV transactions.

Intro: reading mode Note: This code is in beta version, please test it and report any issues.

Intro During the last quarantine days, I sent a new commit to RFID Research Proxmark repository.

Intro NFC Copy Cat is a new security research tool and open hardware device from the Mexican Electronic Cats company.