Herelink secure data(telemetry and sbus) / video transmission, Authentication and Identification

Hi, just need to know following related to Herelink v1.1 secure data transmission:

1- what pairing mechanism is used, can any body with another Herelink can listen to transmission between paired set?

2- Is it really AES-128 Encrypted? if so RC(SBus), telemetry and video all are encrypted?

@Alvin @philip @Michael_Oborne