Windows phones

Hi,  A few days ago, I purchased a Windows mobile phone.  Within 1 day there was a virus in what looked like a business card object, accepted.  Fortunately there wasn't much data on the phone, and I could do a factory reset, with a little data loss. Is NORTON planning to expand their protection to Windows phones?  Your product doesn't support my Windows 10 phone  (Lumia 650) and my wife's Windows 8 phone (Lumia 550).   My Norton license expires within 20+ days, so I will have to make a decision.   I would like to see a roadmap of future expansions of your protection.  I prefer to use one product on all of my devices (computers and phones), because it makes my activities, to monitor the monitor reports much simpler.   

(1)  There was a screen flashed once, that said something about a virus, and I must click on it to remove it. I ignored that because the phone was new and couldn't believe it, meaning that it could be the virus itself and there was certainly no anti-virus program loaded at that point.
(2) The contacts list was suddenly empty.  All the contacts in the list that had been saved, were gone.   The strange thing for me, was:  The call history still showed the correct contact names that had been loaded, but the contacts list was empty.  I assumed that the history app, copied the names from the list, as the calls were made and stored them in history.  Then also, the contacts list could not be edited anymore.

(3) This all happened, after I tried to save a "business card", sent from a friend that had phoned me.  

(4) After the phone had been reset, everything worked normal. My logic says, if the contacts list runs in a sandbox, and there was a virus in the business contact  (coming from an Android OS phone), the assumed virus could only touch the contacts list, and nothing else. 

How did you determine there was a virus? How was the phone' operation affected?

It is my understanding that the Windows Mobile OS is isolated from outside forces as apps are run in a sandboxed environment. This sounds like just rebooting the phone should have removed whatever was affecting it.