iPhone 6s or iCloud account hacked
Let me begin by saying that I’m not sure which of the two is hacked or compromised or for that matter cloned. I believe my roommate has hacked one of not both of them. The behavior is that he seemingly has access to my Notes, can tell where I’m geographically located, and may possibly be able to read my messages as I type them in either WhatsApp and other apps.
My iPhone is not jail broken and has a password setup. I have icloud setup on my it and my MacBook. My phone occasionally seems to crash. I try not to use it with WiFi especially at home since I assume the connection isn’t safe. Can anyone advise me on the steps that I should take?
I’m willing to do anything up to change my mobile number, reset to factory standards the iPhone, changing passwords for iphone and icloud account. However, I’m not sure which would help(if I am correct with the account or phone being compromised, hacked, or cloned).
iPhone 6 Plus, iOS 11.3.1, null