ZEKASTRA

Training module

Home network and Wi-Fi

The few settings on a home router that matter, what a VPN does and does not do, and how to treat smart devices.

10 minutes Basic

What you will be able to do

  • Secure a home router in about fifteen minutes.
  • Explain what a VPN changes.
  • Keep guests and smart devices away from your computers.

The router is the front door

Everything at home connects through it, yet many routers still run the settings and passwords they shipped with. Two passwords matter and they are different: the one for joining the Wi-Fi, and the one for the router's administration page.

  • Change the default administration password and, if offered, the default user name.
  • Use WPA3, or WPA2 with AES, with a long Wi-Fi passphrase. Do not use WEP or an open network.
  • Switch off remote administration from the internet unless you need it.
  • Switch off WPS, the push-button pairing feature, which has a history of weaknesses.
  • Install firmware updates, or enable automatic updates if the router offers them.

Separate the networks

Most routers can run a guest network. Put visitors, and smart televisions, cameras, speakers and other devices you do not fully control, on it. If one of those is compromised, it then has no direct path to your laptop or the folder with your documents.

What a VPN does

A VPN encrypts the traffic between your device and the VPN provider and hides your address from the sites you visit. It moves trust from your network to the provider, who can see what the network could. It does not make you anonymous, and it does not protect an account from phishing or a password from reuse. On public Wi-Fi, HTTPS already protects the content of most connections.

Smart devices

Change the default password of every camera and device before connecting it, switch off features you do not use, and look at how long the maker promises updates before you buy. A device that will not be updated is a permanent hole.

Key points

  1. Change the router's administration password and keep it updated.
  2. Put guests and smart devices on a separate network.
  3. A VPN shifts trust; it does not cure phishing.

Check yourself

Choose an answer to see the explanation. You can start again at any time.

1. Which password protects the router's own settings?

They are separate. Leaving the administration password at its default lets anyone on the network change the router.

2. Where should a smart television belong?

Devices you cannot fully control are better isolated from the ones that hold your files.

3. Which statement about VPNs is accurate?

You are choosing who to trust, not removing the need for trust.

Go further

Sources

This section is for defence and learning. Do not test systems you do not own or have written permission to test: unlawful access to an information system is an offence (Turkish Penal Code, Article 243).