In general, a virus can enter a Wi-Fi router in several ways at once. For example, through vulnerabilities in software, a password (if it’s very simple), through phishing messages.
Why is it dangerous to infect a user with a router virus? First of all, the fact that scammers can access a person’s personal data. Also, scammers can use the router to send spam, access other devices on your network, and slow down the network.
The following signs may indicate that the router has a virus. These are unexpectedly slow Internet speed or connection problems, strange messages appearing in the web browser (ad banners, security alerts, etc.), strange activities on the router (newly connected devices appearing, changing settings). If you notice any of these, be sure to check your device for viruses.
Source: Ferra
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