Our security research team developed an Android application to implement NFC data exfiltration method using the native Android API. The research demonstrates successful data exfiltration at 20 meters and signal detection at over 35 meters using the NFC radio of a Samsung S8 Android device. All tests use a cheap, standard radio as a receiver, connected via the mic jack to a smartphone that decodes the data.
You can check the original research and videos in the following url - https://www.checkmarx.com/blog/nfcdrip-air-gapped-systems/.
This proof-of-concept is made for educational and ethical testing purposes only. Usage of NFCdrip for attacking targets without prior mutual consent is illegal. It is the end user's responsibility to obey all applicable local, state and federal laws. Checkmarx assume no liability and are not responsible for any misuse or damage caused by this program.