So how exactly does Windows "detected some suspicious activity from your IP address"?
I wouldn't consider myself an expert with Apple products but I use an iPad daily.
The message seems like a tech support scam to me.
These are fairly common and easy to deal with.
Googling the number shows it has quite the history of being used by scammers.
The thread linked by @zep516 seems to confirm my thoughts about this likely being a scam.
This seems like something that would occur within a browser. Are you referring to Chrome or the Google app?
You said that you're on an iPad, is the message continuously being displayed or interfering with browsing?
Apple has intentionally locked down iPads and other IOS powered devices to prevent malware so this shouldn't be difficult to deal with.
If you are able to browse without it continuously displaying the message then its nothing to be worried about.
If it is continuously being displayed, is the app locked up or is it random?
If the app is locked up, try closing it by double pressing the home button and closing the application. Turn on airplane mode and reopen the application and try to close open tabs. Then turn off airplane mode and see if it persists while browsing.
Edited by OpenSourcerer, 14 January 2016 - 08:43 PM.