The receivers getting the new update are XAV-AX150, XAV-AX1000, XAV-AX3200, XAV-AX3250, XAV-AX5500, XAV-AX5600, XAV-AX8000, and XAV-AX8100. The firmware update includes a critical security fix reported to Sony by Trend Micro Zero Day Initiative researchers. The re...