iPhone sending texts on its own

Norton 360 for iOS | Android
1

Note: Please do not post Personally Identifiable Information like email address, personal phone number, physical home address, product key etc.

Issue abstract: texting

Detailed description:
My iPhone is sending text while I am nowhere near the phone
Product & version number:
iPhone 12 Pro Max
OS details:

What is the error message you are seeing?no error message

If you have any supporting screenshots, please add them:
My iPhone is sending blank text to people on my contacts list during the night while I am asleep and nowhere near the phone

2

Where is the phone when these texts are being sent?
Do you recognise the recipients of these texts? ie, are they in your contacts?

This does not sound like it would be related to Norton, so I would suggest looking at Apple Support articles, such as Iphone Sent A Text on its own - Apple Community