Scareware frightens people with false warnings about a device so they will pay or install an unwanted program right away.
The pressure is fear of a problem that is not real, and the files on the machine are not encrypted by this trick.
How it works
A popup, a browser page, or a phone call claims the device is infected and offers a fix for a fee or a download.
The design copies the look of security tools so the person acts before asking anyone else.
This differs from ransomware, which locks data, and from phishing, which mainly steals secrets by impersonating a known party.
Here the product being sold is the fear itself, sometimes followed by an unwanted install.
Concrete examples
- A full screen browser page says a virus was found and will not close until a number is called.
- A mobile site flashes a system style alert that the phone will be locked unless a fee is paid today.
- An older relative installs a cleanup tool from a warning that never came from the real security vendor.
Protective measures
- Close the page with the browser task tools and do not call numbers shown inside an unexpected warning.
- Install software only from stores or vendors your organization already trusts.
- Teach households that real security tools do not demand instant payment through a popup.
- Report the site to your security contact so filters can block the warning page for others.