Presently most have IR filters. Removing the filter would impact the image processing capabilities which may be a very expensive task to correct.
Theoretically, installing an IR filter would block the signal.
If it’s actuated by a low level optical coding in the visual range, then adding additional strobe pulses—adding static to the signal entering the camera might jam the shut-down command.
Perhaps the commands are coded as blue-tooth??? or wifi-direct??? type transmissions.