Securb
One of Jerry's Kids
Nice to know anyone in the audience with a smart phone can change your settings. I think I will stick with my "dumb" '72 Silverface with no bluetooth.
https://www.theregister.co.uk/2018/02/27/fender_smart_guitar_amp_dumb_security/
Guitar amp manufacturer Fender's recently-introduced Mustang GT 100 guitar amplifier can be made to play whatever audio an attacker fancies, security researchers have discovered.
The amp allows Bluetooth connections, but without pairing security. Anyone within range could therefore "stream arbitrary audio to it and hijack your amp output", security researcher Chris Pritchard of Pen Test Partners (PTP) reported.
The device - marketed towards gigging musicians - is trivially easy to hack, as a video put together by PTP (below) demonstrates.
https://www.theregister.co.uk/2018/02/27/fender_smart_guitar_amp_dumb_security/