Technology is described for proximity based communications. A proximity boundary can be defined with dimensions defined by a communication range of one of a first Short Range Communication (SRC) device and a second SRC device. The first SRC device and the second SRC device can be configured to communicate using near field magnetic induction (NFMI). A proximity signal can be communicated in the proximity boundary between the first SRC device and the second SRC device. A security permission can be provided to enable selected data to be communicated from one or more of the first SRC device or the second SRC device in the proximity boundary when the proximity signal is detected between the first SRC device and the second SRC device. The selected data can be communicated from one or more of the first SRC device or the second SRC device using a radio frequency (RF) communication standard.