Wifi Router Attacks: What to Do

TL;DR

Someone might be trying to get into your wifi router. Change your password immediately, check for firmware updates, and make sure your router’s security settings are strong. If you’re not comfortable doing this yourself, ask a tech-savvy friend or family member for help.

1. Understand What Might Be Happening

Attacks on wifi routers come in many forms. Here are some common ones:

• Brute Force Attacks: Someone trying lots of different passwords until they get the right one.
• Dictionary Attacks: Using a list of common passwords to try and log in.
• Firmware Exploits: Taking advantage of weaknesses in your router’s software.
• Malware: Your devices could be infected, allowing someone remote access.

You might notice slow internet speeds, strange redirects when browsing, or unusual activity on your network as signs of an attack.

2. Change Your Router Password – Right Now!

This is the most important step. Use a strong password that’s at least 12 characters long and includes a mix of uppercase letters, lowercase letters, numbers, and symbols. Don’t use personal information like your birthday or address.

• Find Your Router’s IP Address: Open Command Prompt (Windows) or Terminal (Mac/Linux). Type ipconfig (Windows) or ifconfig (Mac/Linux) and press Enter. Look for the “Default Gateway” – that’s your router’s address.
• Log In to Your Router: Open a web browser and type your router’s IP address into the address bar. You’ll be prompted for a username and password. The default credentials are often printed on a sticker on the router itself (e.g., admin/admin, admin/password).
• Change the Password: Look for a section called “Administration,” “System Tools,” or similar. Find the option to change your administrator password.

Example of finding Default Gateway in Windows:

ipconfig

3. Update Your Router’s Firmware

Firmware updates often include security patches that fix vulnerabilities. Check your router manufacturer’s website for the latest firmware version and instructions on how to install it.

• Find the Update Section: In your router’s settings (where you changed the password), look for a section called “Firmware Upgrade,” “System Update,” or similar.
• Download and Install: Some routers can automatically check for updates, while others require you to download the firmware file from the manufacturer’s website and upload it manually. Follow the on-screen instructions carefully.

4. Strengthen Your Router’s Security Settings

• Enable WPA3 Encryption: This is the most secure wifi encryption standard available. If your router supports it, use it! (Older devices might not be compatible). You’ll find this in the “Wireless” or “Security” settings.
• Disable WPS: Wi-Fi Protected Setup (WPS) can be vulnerable to attacks. Disable it if you’re not using it.
• Enable Firewall: Most routers have a built-in firewall – make sure it’s enabled.
• Change the SSID (Network Name): Change your wifi network name to something unique and avoid using personal information.
• Hide Your SSID (Optional): Hiding your SSID makes your network less visible, but it’s not a foolproof security measure.

5. Check Connected Devices

Look through the list of devices connected to your wifi network in your router’s settings. If you see any unfamiliar devices, disconnect them immediately and investigate.

6. Consider a cyber security Scan

Run a scan on all your devices (computers, phones, tablets) with reputable antivirus/anti-malware software to check for infections.

7. When to Get Help

• You’re not comfortable making these changes: Ask a tech-savvy friend or family member for assistance.
• Your internet speed remains slow after making changes: This could indicate ongoing issues.
• You suspect your devices are compromised: Contact a cyber security professional.