I spent literally 5 days on the phone with the top level of Apple Support. I was amazed at how long they spent with me. I even had the separate Yahoo mail app downloaded and it worked as it should. In fact, Yahoo tells you that its app works better as a separate app from the native Apple one and that is the biggest indicator that Yahoo does not wish it to work as it did. Apple tech support and I have talked thru everything and the only 2 things occurring which I am unhappy with are the change Apple made to all Apple devices about Fetch account delivery (plugged in and on WiFi or timed) and the sound that is missing from my Yahoo mail notifications. As all (I now have 4 email accounts) function as always, and as I wish them to, minus the sound notification for Yahoo while using the native email application, I am reasonably sure this is not a case of my device being hacked. My issue is one that has been reported online as has a similar one with Gmail..I have been an iPhone user since at least 2010 and am not concerned that my device was hacked by CCP nor by Apple since the issue only occurs on the device I already just upgraded. Even Apple doesn’t think I will buy a new iPhone every month and the one I have is the 16 Pro so nothing to upgrade to until September. I appreciate the offer about Windows and PCs but I am never going back. Also, before retirement, , I was a computer crime investigator. I just no longer spend time on a Windows computer and don’t remember every driver I had to download to adapt it to my use. In addition, Apple has changed iTunes completely since the 15 yrs when I began my journey with them so I have no idea if what made my previous experience when using a PC work. I am completely in the garden now and its pretty seamless. Thank you for offer to help though.