How would I know if my iPhone 4 has been hacked?

I was told I was hacked on my Iphone and that all they needed was my phone number.

Scam
If you were hacked they would KNOW your phone number already

The purpose of hacking is to obtain information from you to get essentially CASH

Access to your bank a/c to withdraw funds etc
ANY activity an an account you control
Anybody can say the hacked my a/c until they withdraw money etc

SCAM all they needed was my phone number. YEAH RIGHT

  • My iPhone X has been hacked is my phone useless now? My ex stole my Apple ID password and security questions and has changed them. On top of that, she has locked my apps such as my calendar and notes. I can't access nothing without putting the Apple ID PW in. Is my phone no good now? Do I have to buy another?
  • I think my psn account has been hacked So i was gone for the weekend and on the weekend i went to my cousins house and i have them as friends on psn and they told and showed me that i just got offline then they went to their friends list and it said that i last signed in 40 mins ago and i haven't got on in a day. And i have a iphone app called psn bubbies where you can sign into your account and see your friends but i try to sign in with the app but it still said that i was offine on my cousins friends list
  • I'm worried that my iPhone has been hacked? I just recently got an android phone, but still have my iPhone 5c (but has no service, so it's basically an iPod touch). It's been off in a drawer for about a month, and I've recently turned it on. I was going through my photo album and several bunches of photos (my photos) say that they were taken in Qinghai, China and El Bayadh, Algeria, both of which I've never been to. Should this be a concern? If so, what should I do?
  • How to know if your iphone has been hacked? I hear all you need is a spy app from Claudia. But can that really get into my iphone? Are there any signs that could tell me I've been hacked?