What "hidden" actually hides β and what it does not
Hiding an SSID only removes the network name from the passive scan list most devices display by default. The management frames your own devices send out while probing for or connecting to that network β including the network name itself β are still broadcast in the clear over the air. Free wireless-scanning tools that capture these frames can reveal a "hidden" network name in a matter of seconds, which is why security researchers generally classify SSID hiding as obscurity rather than actual access control.
A short list of settings that matter far more than hiding your SSID
If real security is the goal, prioritize WPA3 encryption (or WPA2 if your hardware does not support WPA3), a long and unpredictable Wi-Fi password rather than a short or personal one, and changing the router's own admin login from its default username and password β a surprising number of home routers are compromised through the admin panel rather than the Wi-Fi password itself. Keeping the router's firmware updated closes off known vulnerabilities as well.
Frequently Asked Questions
Does hiding my SSID slow down my Wi-Fi?
No, whether an SSID is broadcast has no effect on internet speed or connection performance. The only downside is the extra step of typing the network name and password manually every time you connect a new device.
So is hiding the SSID completely pointless?
Not entirely pointless β it can keep an ordinary neighbor or passerby from noticing your network in a casual scan. But it is not a meaningful barrier against anyone specifically trying to find it, so it is best understood as a minor supplement to real security settings, not a replacement for them.