A pop-up that says your computer is infected can be alarming. But a warning on a webpage isn’t proof that your device has a virus. Some scams use urgent messages to persuade people to call a number, install software or give a stranger remote access to their computer. The Federal Trade Commission warns that fake tech-support messages may imitate well-known companies and try to scare people into sharing information or allowing remote access. It also says real security pop-ups won’t ask you to call a phone number.

If a warning appears

• Don’t call a number displayed in the pop-up.
• Don’t install software because a pop-up tells you to.
• Don’t give an unexpected caller remote access to your device.
• Close the browser tab or window if you can do so safely.
• If the message keeps appearing, ask someone you trust or contact a technician using contact details you found independently.

If you already gave someone access to your computer or shared a password, act promptly. Use a different, trusted device to change affected passwords, and contact your bank if you shared payment details or sent money.

Get the device checked

Unexpected pop-ups, unfamiliar programs or unusual device behaviour can have different causes. Don’t assume one symptom proves malware is present. A proper assessment can help establish what’s happening and what steps may be appropriate. Kagiso Online helps customers with malware and virus removal for computers, along with practical advice about safer technology habits. Concerned about your computer? Contact Kagiso Online through the details on our website—not a phone number in a pop-up.