Virus
My partner (iPhone 12) got a scam phone call and pressed her 1 button to respond to a question Is it possible this put a virus or malwear on herphone
iPhone 7, iOS 15
Hey there,
No, there is nothing to worry about, please make sure that her device is up to date .
you can also make a Safety Check on your iPhone, Learn how Safety Check lets you easily review and update sharing with individual people and apps:How Safety Check on iPhone works to keep you safe - Apple Support
Learn about the features built into Apple devices to support your personal safety and privacy.
Learn more about privacy and safety tools and methods
Use these checklists to quickly learn how to control who you want to have access.
Manage location sharing checklist
We also recommend you to check this user guide :Personal Safety User Guide - Apple Support
All The Best!