Your home router is the front door to every device you own. Start by signing in to its admin page and changing the default admin password to a long, unique passphrase.
Next, confirm your Wi-Fi uses WPA3 or WPA2 encryption, turn off WPS, and check for firmware updates. Many routers can update automatically — turn that on.
Finally, create a separate guest network for visitors and smart-home gadgets so they can't see your computers and phones.
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