Awful 1st experience. I had a notification msg today that a phone number I didn't recognise had sent me emojis via Duo which I had never previously used. Once I clicked on the notification, Duo started asking me for permissions which I refused as didn't trust it. There was no log of this msg on Duo or anywhere so I could not check the number or look at the message properly. It had disappeared! Did Google send it or who sent it? A scary &untrustworthy way 2contact me especially with Russian war