How can I find out what app is accessing my microphone?
There is an orange dot indicating an app is using my microphone but I have not requested this. How can I find out what app is using the microphone and turn it off?
What were you doing when you saw this indicator?
About the orange and green indicators in your iPhone status bar - Apple Support
Control Center should tell you what's using the microphone
Access Control Center on your iPhone and iPod touch - Apple Support