📍 If MCT says "No keys found," you may need to use external tools like Proxmark3 to crack the keys first, then import them into MCT to perform mobile edits. If you'd like to dive deeper into using this tool: Step-by-step cloning guide (using CUID tags) Troubleshooting device compatibility (NXP vs. Broadcom) Decoding Access Bits (understanding sector permissions) Which of these areas should we explore next?
Always create a full dump of a card before attempting to write data. Writing incorrect data to the "Trailer Block" (the last block of any sector) can permanently lock that sector if the keys are overwritten with unknown values. mifare classic tool 2.3.1
Only interact with tags you own or have explicit permission to audit. 📍 If MCT says "No keys found," you
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 Always create a full dump of a card
To use the tool effectively, you usually start by running a "Mapping" process. You select a dictionary file (MCT comes with a std.keys file containing common defaults), and the app attempts to authenticate each sector.