Wireless Network Security

WiFi traffic travels through the air, so anyone nearby can technically receive it, the only thing stopping them from reading it is encryption. WPA3 is the current WiFi security standard, replacing the older WPA2 (still common) and the now-broken WEP (should never be used). If a router's admin panel offers WPA3, use it; WPA2 with a strong password is still reasonable, WEP is not meaningfully secure at all.

Beyond the encryption standard, a few habits matter: change the router's default admin password (default credentials for most router models are public knowledge), use a long WiFi password rather than a short memorable one, and keep router firmware updated, router vulnerabilities are a genuinely common way attackers get into home networks.