How to Secure Your Home WiFi Network

• WPA3: The current standard (2020+). Strongest protection, resistant to offline brute-force attacks. Use this if your router supports it
• WPA2 (AES): Still adequate for most home networks if WPA3 isn't available. Make sure it's using AES encryption, not TKIP
• WPA/WEP: Severely outdated and crackable in minutes. If your router only supports these, it's time for a new router

Find this setting in your router's Wireless Security section. If you see an option for "WPA3/WPA2 Mixed Mode," that's often the best choice — it provides WPA3 for devices that support it and WPA2 for older devices.

Step 4: Set a Strong WiFi Password

Your WiFi password should be long (at least 15 characters) and random enough that it can't be guessed. It doesn't need to be impossibly complex — "purple-telescope-sandwich-volcano" is a strong WiFi password that's easy to type when connecting new devices.

Avoid using your name, address, or any personally identifiable information in your WiFi network name (SSID) or password. "JohnsonFamily_5G" tells a potential attacker who lives here.

Step 5: Update Your Router's Firmware

Router firmware updates fix security vulnerabilities. Most people never update their router firmware, leaving known exploits open for years. Check your router's admin panel for a firmware update section, or visit the manufacturer's website for the latest version.

Many modern routers support automatic firmware updates — enable this feature if available. If your router is more than 5 years old and the manufacturer has stopped releasing updates, consider replacing it — an unsupported router is a permanent security liability.

IsThisAScam's 6-layer detection helps protect against phishing even if your network is compromised, by analyzing suspicious messages and links at the content level rather than relying solely on network security.

Step 6: Create a Guest Network

Most modern routers support a separate guest network. Use it for visitors and for IoT devices (smart speakers, smart bulbs, security cameras). The guest network is isolated from your main network, so a compromised smart device can't access your computers and phones.

Set the guest network with its own strong password and WPA2/WPA3 encryption. Some routers also allow you to disable guest-to-guest communication, preventing devices on the guest network from seeing each other.

Step 7: Disable WPS and Remote Management

WPS (WiFi Protected Setup): That button on your router that lets devices connect without entering a password has known vulnerabilities. Disable it in your router's settings.

Remote Management: Unless you specifically need to access your router's admin panel from outside your home, disable remote management. It's an attack surface that provides zero benefit to most users.

Step 8: Consider DNS Filtering

Changing your router's DNS servers to a security-focused provider blocks known malicious and phishing domains for all devices on your network:

• Cloudflare for Families (1.1.1.3): Blocks malware and adult content
• Quad9 (9.9.9.9): Blocks known malicious domains, privacy-focused
• CleanBrowsing: Offers family-friendly filtering at the DNS level

Set these in your router's DNS settings (usually under WAN or Internet configuration). This provides network-wide protection without installing software on each device.

Advanced: Network Monitoring

Periodically check which devices are connected to your network through your router's admin panel (usually under "Connected Devices" or "DHCP Client List"). If you see devices you don't recognize, someone may have your WiFi password. Change it and reconnect your known devices.

For more on device security, see our guides on securing your phone and public WiFi safety.