A system comprising: a radio frequency, RF, sensor configured to detect RF signals in a first frequency band and a second frequency band; at least one memory that stores computer-executable instructions; and an RF controller operationally coupled to the RF sensor and the at least one memory, wherein the RF controller is configured to access the at least one memory and execute the computer-executable instructions to: direct the RF sensor to detect RF signals in the first frequency band; determine that no RF signals are detected by the RF sensor in the first frequency band; then direct the RF sensor to detect RF signals in the second frequency band; receive, from the RF sensor, a first RF signal corresponding to an RF signal transmission in the second frequency band; identify a protocol by which the RF signal transmission was transmitted based at least in part on an identification of a range of frequencies in the second frequency band; determine an RF fingerprint associated with the RF signal transmission based at least in part on the first RF signal and identification of the protocol, wherein the RF fingerprint comprises at least one of: a hardware address of an electronic device that emitted the first RF signal, or a radio type identifier of a radio of the electronic device; then receive a location associated with the RF sensor; determine that the location is within an area under surveillance, AUS, wherein the AUS is a physical area defined by one or more boundaries; transmit an indication of the RF fingerprint, in the AUS, to a security server; and identify, by the RF controller, that the RF fingerprint is associated with a user that is unauthorized to be in the AUS. a radio frequency, RF, sensor configured to detect RF signals in a first frequency band and a second frequency band; at least one memory that stores computer-executable instructions; and an RF controller operationally coupled to the RF sensor and the at least one memory, wherein the RF controller is configured to access the at least one memory and execute the computer-executable instructions to: direct the RF sensor to detect RF signals in the first frequency band; determine that no RF signals are detected by the RF sensor in the first frequency band; then direct the RF sensor to detect RF signals in the second frequency band; receive, from the RF sensor, a first RF signal corresponding to an RF signal transmission in the second frequency band; identify a protocol by which the RF signal transmission was transmitted based at least in part on an identification of a range of frequencies in the second frequency band; determine an RF fingerprint associated with the RF signal transmission based at least in part on the first RF signal and identification of the protocol, wherein the RF fingerprint comprises at least one of: direct the RF sensor to detect RF signals in the first frequency band; determine that no RF signals are detected by the RF sensor in the first frequency band; then direct the RF sensor to detect RF signals in the second frequency band; receive, from the RF sensor, a first RF signal corresponding to an RF signal transmission in the second frequency band; identify a protocol by which the RF signal transmission was transmitted based at least in part on an identification of a range of frequencies in the second frequency band; determine an RF fingerprint associated with the RF signal transmission based at least in part on the first RF signal and identification of the protocol, wherein the RF fingerprint comprises at least one of: a hardware address of an electronic device that emitted the first RF signal, or a radio type identifier of a radio of the electronic device; then receive a location associated with the RF sensor; determine that the location is within an area under surveillance, AUS, wherein the AUS is a physical area defined by one or more boundaries; transmit an indication of the RF fingerprint, in the AUS, to a security server; and identify, by the RF controller, that the RF fingerprint is associated with a user that is unauthorized to be in the AUS. receive a location associated with the RF sensor; determine that the location is within an area under surveillance, AUS, wherein the AUS is a physical area defined by one or more boundaries; transmit an indication of the RF fingerprint, in the AUS, to a security server; and identify, by the RF controller, that the RF fingerprint is associated with a user that is unauthorized to be in the AUS.