Fake Antivirus Malware Alerts Scam

Illustration of Fake Antivirus Malware Alerts Scam — a laptop keyboard close-up

By ZapScam Editorial Team · Last updated: April 2026 · Reviewed for accuracy

Americans lost $12.5 billion to fraud in 2024, according to the FTC.

Quick Answer

Fake antivirus alerts are fraudulent pop-up messages designed to trick you into believing your device is infected with malware, leading to financial losses that are part of the broader tech support scam category, which cost victims over $1.3 billion in 2023 according to the FBI.

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How It Works

1
A deceptive pop-up alert suddenly appears while browsing the internet. This message is designed to look like a legitimate security warning from a well-known tech company like Microsoft or Apple, or a major antivirus vendor.
2
The alert uses urgent and alarming language, such as "Your computer is infected!" or "Threats Detected!" and often includes flashing lights, loud noises, or a countdown timer to create a sense of panic. The message instructs you to call a toll-free number for immediate technical support to fix the non-existent problem.
3
If you call the number, a fake technician pressures you into giving them remote access to your computer. Once connected, they may pretend to run scans and show you normal system files as evidence of a virus, ultimately demanding payment for useless software, unnecessary repairs, or a long-term service contract.

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Frequently Asked Questions

A fake antivirus alert is a deceptive pop-up message that appears in your web browser claiming your device is infected with viruses. These scams, also known as scareware, aim to frighten you into calling a fraudulent tech support number or downloading malicious software. Their goal is to steal your personal information or money.
Generally, no. The fake warning itself is not a virus but a scam tactic delivered through malicious advertising or a compromised website. However, if you interact with the pop-up by clicking links or downloading files, you could install actual malware on your device.
Tech support scams, which include fake virus alerts, resulted in over $1.3 billion in losses in 2023, according to the FBI's Internet Crime Complaint Center (IC3). Victims over the age of 60 are disproportionately affected, accounting for 58% of these losses, totaling nearly $770 million.
No, legitimate technology companies like Microsoft and Apple do not display pop-up warnings that ask you to call a phone number. Real security alerts from your operating system or antivirus software will not request that you call support or demand payment to fix a problem.

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