Allowed iPhone to be hacked?

Restoring to factory settings was a good thing to do. The main thing at this point is to make sure you have a strong password. After doing so it's back to business as usual unless a backup was made after installing the problem software. I wouldn't use the backup. Also being violated in terms of sensibility is prohibited.

See: If you think your Apple ID has been compromised https://support.apple.com/en-us/HT204145 and

Security and your Apple ID https://support.apple.com/en-us/HT201303

And also see these additional security-related documents. 

iCloud security overview  https://support.apple.com/en-us/HT202303

Ways to keep your information safe on Mac https://support.apple.com/en-gb/guide/mac-help/mh11402/mac

Using app-specific passwords https://support.apple.com/en-us/HT204397

UseTwo-factor authentication for Apple ID https://support.apple.com/en-us/HT204915

Teamware? Do you by any chance mean Teamviewer?

If so, there's nothing malicious about the Teamviewer App at all.

Its an App used to access remote computers from an iOS device. It can do absolutely no harm to your device.

Can you perhaps explain exactly what happened?

Yes sorry Teamviewer - called me re my poor broadband did speed test onmain computer asked me to install something? but unable to as is a work computer and very secure then asked to install teamviewer app on my phone kept asking me if I do internet shopping or banking!

I wanted to strongly recommend changing passwords to all important accounts (website and/or app), especially relating to banking, shopping, healthcare, or any other with sensitive personal information. Just as a precaution.

If you don’t already use a password manager, I’d recommend it. It makes remembering, changing, and creating more secure, complex passwords a much faster process.

My advice is probably mentioned in one of the links above, but I wanted to emphasize the importance of changing your other passwords to increase your online security.

Thank you for taking the time to respond

So can i retrieve my data from the ckoud

Then quickly change password in banking app and often used shopping apps? I have changed my apple id password

Do i need to get a new email account or just change passwo

rhanks

Hi yes i only speed read it but thank you so much for all the detail - i will have a ptoper look tomorrow - very stressful afternoon!

So my back ups are usually overnight so wouldn't have been backed up with the teamviewer app - now deleted

can i therefore go to the cloud and get my info back?

Thank you for your comment about “prohibited”

If you installed Teamviewer on your iPhone, there's no problem there.

Whoever you talked to may have wanted to access your device, though it, but Teamviewer on an iPhone does not allow that access to the iPhone. so no issue there.

If you had let them access your computer then that may have been an issue.

Anyway, if you restored your iPhone, then your fine, and your backup also has no issues and can be used.

Re: passwords

Yes, after downloading your backup from iCloud, then you can change passwords for apps. I don’t think you need a new email address, but I’d change the password to the one you use.

I know the whole experience is stressful! It you acted fast and you have a good backup, so that’s a good thing.

Did you see my original post?

Great. Happy reading. Yes, go back to the iCloud. Be safe. And you are welcome.

Aah great thank you so so much

You are very welcome.