Does this ad pop up when you're browsing the web on your mobile device or computer?
This is a widespread form of malware. The only way to prevent these pop-ups is to remove the malware that's creating them. On your computer, it may be hiding in a browser extension. On your mobile device, the malware is often disguised as an innocent-looking app.
In general, you should:
- Force close your browser
- Clear your cache, cookies and website data
- Delete any browser extensions or apps you installed shortly before the ads started to appear
- Use an anti-malware application to scan your computer for malware
- Keep AdBlock installed for ongoing malware protection
And above all, never click any links or buttons in any pop-up ad like this.