User name changed & fake password popups
Appears my iPhone 6s has been compromised somehow when I was using iOS 10.3.1. Last week I used Collagable for the first time as well as downloaded some video apps (2 free, 1 paid - InShot). A few hours after paying for the app I got a call at my home phone # from a caller speaking in an Oriental-sounding language. A friend who speaks Korean and Japanese said she thinks it's Chinese. (I have audio of it I can share but I am not able to insert video as the video button is grayed-out.) Started seeing pop ups for Apple ID password. Two nights ago, I saw my iCloud storage on my phone saying it was at zero. Freaked and input password I had avoided entering all week. After going to iCloud, I saw my storage was intact. Updated iOS (from 10.3.1 iOS I believe). Then changed password twice. Now have 2FA on phone but not iCloud Keychain.
Noticed iMessage has prompt at bottom: Messages in iCloud is currently disabled / Repair account.
I read there are people who know about this prompt problem.
However, after thinking everything was fine with my password, today I decided to click the “repair” link at bottom. There’s a question mark at the end of the password box among other things that don't appear like the usual Apple prompt. I was thinking it was a new dialog box after new iOS installation. (Checked w/my husband who updated to latest iOS and he doesn't have this question mark when prompted for a password.)
So, today in dealing with the "repair account" for iMessage/iCloud, I entered password again and THEN received a prompt for iCloud Keychain. (No image for this.) Definitely not right. I do not have iCloud Keychain. I didn't enter anything.
Has anyone seen a prompt with a question mark like this?
Decided to see if there are any different-looking prompts. When I went to Settings/App Store I got the prompt WITHOUT a question mark.
Later when I turned the phone on I saw a quick reminder asking for a password.
Went to iTunes. I have touch-enabled set up. Got the normal-looking screen when I clicked on my Apple ID and selected "View Apple ID".
Noticed that Apple Pay Cash was enabled (not sure how). Turned it off.
The other night I noticed after the iOS update that the name on my credit card used for iCloud storage was now my new name. I use my nickname that shows up below my picture in "Settings/Apple ID, iCloud, iTunes & Storage". I don't know HOW my name was changed. I thought perhaps it was an iOS update thing but now I am not sure. I changed it back to my nickname.
So thank you in advance for your suggestions. (I have turned the phone off and powered up a few times.)
iPhone 6s