If this message is via your browser only then yes it is suspicious, for Edge you should backup your favourites then close Edge, either by clicking on the X, by ctrl, alt del & then open task manager & find Edge entry & click on this & choose end task. Then open Edge & it will offer to start afresh, you can then clean the browser’s cache, cookies & history. If this isn’t enough you can reset Edge by Right-click on the Start button in the lower-left corner and select “Apps and Features“. Scroll through the list until you find “Microsoft Edge”, click it, and then click on the “Advanced options” link. Next, click on the “Reset” button.
Similar for other browsers except you’d not be able to reset it.
You can also use an adblocker to prevent these scams from showing - I would recommend AdGuard browser extension/add-on or Ghostery.
I'm getting these also, they aren't Malware. I have started receiving them on my phone as well as my PC (which I have recently rebuilt so it's clean) It's like they are some sort of DNS redirect or something. It's something VM should investigate.
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If you look at the community this has been mentioned a number of times over the last few months.
It is nothing to do with Virgin Media as you will see exactly the same discussions using other ISP's such as BT.
It is a phishing scam that is triggered when accessing a particular website.
If you are brave, or foolish, enough to follow it through the end screen will ask you for your card details to pay £1 for the iphone you've won, with of course everyone being a winner.
I had a cyber security professional look at it and he assures me it is not related to malware on the device but is a rogue link embedded in a corrupted pixel within the website that you were in when it was triggered.