Cloning access cards or manipulating transit balances is illegal in most jurisdictions. MCT should be viewed as an educational resource for understanding RFID security. Getting Started with Version 2.3.1
The 2.3.1 update specifically focused on refining the user interface and improving compatibility with newer Android versions. At its core, MCT is not a "hacking" tool in the cinematic sense; it is a specialized browser and editor for the internal memory sectors of MIFARE Classic chips. mifare classic tool 2.3.1
MIFARE Classic uses a sector-based security model with Key A and Key B. MCT includes an editor to manage and import dictionary files (.keys) containing known or default keys. Cloning access cards or manipulating transit balances is