WOW The exact same thing happened to me, probably one of the neighbours testing development apps on your account through wifi access . Check your internet providers hardware , all the way to the power pole. I’m still having crazy issues . 3 brand new MacBooks, I iMac, 1 iphone12 pro max, and now my iPad Pro, 50000 school year,every account I’ve ever made destroyed now my friends and family think I’m losing my mind and to top it off I I love apple and Adobe and need them for what I want to do for a career , Now Apple and Adobe think I’m shady and doing all this and are almost ready to blacklist me,It’s the worst thing I’ve ever experienced. Just when I am trying to change my ways and be good . Terrible experience. If you find a solution please let me know.