Home network security: essential steps to protect Wi-Fi and IoT devices

Securing a home network can be achieved through a few high-impact actions focused on the central router rather than individual devices. Key security measures include changing default administrator passwords, upgrading Wi-Fi encryption to WPA2 or WPA3 protocols, and ensuring router firmware is kept up to date to patch vulnerabilities.

Internet of Things (IoT) devices, such as smart appliances, vacuum robots, and connected light bulbs, often lack robust security features and can serve as entry points for intruders. Once a vulnerable device is compromised, attackers may gain access to the broader domestic network, potentially monitoring browsing activity or utilizing the connection for unauthorized downloads.

To mitigate these risks, experts recommend isolating smart home devices on a separate guest network. Additionally, users should avoid using default passwords printed on hardware or easily guessable personal information, opting instead for long, complex passwords generated by security tools. It is also vital to verify if a router is still supported by its manufacturer, as end-of-life equipment no longer receives critical security updates.