Key takeaways
- SSID is simply the name of your Wi‑Fi network that appears when you search for available connections.
- It identifies a wireless network and can include letters, numbers, and symbols, but it isn’t unique: many nearby networks can share the same name.
- Devices rely on SSIDs to choose which network to connect to, often selecting the strongest or most recently used option when duplicates exist.
- Routers typically come with default SSIDs assigned by manufacturers, which are often generic and can reveal your router’s make and model.
- Changing the default SSID makes your network easier to recognize, but real protection comes from WPA3 or WPA2 encryption, a strong password, and up-to-date router software.
What is SSID: how to find and protect yours
The term SSID may sound complex, but it’s just the technical term for a network’s name. Whether you’re connecting to a Wi-Fi network at home or the shopping mall, it has an SSID. When you open the Wi-Fi settings on your device, you’ll see a number of network names, or SSIDs, in your area.
In short, an SSID is the name a router or access point broadcasts so your devices can find and join its network. It isn’t a password and doesn’t secure your network on its own. That’s the job of encryption like WPA3 or WPA2 and a strong Wi-Fi password.
What does SSID stand for?
SSID stands for service set identifier. It can be made up of case-sensitive letters, numbers, and special characters like dashes, periods, and spaces. According to the 802.11 wireless local area network (WLAN) standard, an SSID can be up to 32 bytes long. That’s usually 32 characters, but emoji and accented characters take up more than one byte each.
What is SSID used for?
Access points and wireless routers broadcast their SSIDs to identify themselves. Your device can connect to any SSID if the network has no security options enabled. But your device will need a password if the network is secured.
What if multiple networks have identical SSIDs?
When two networks have the same SSID and security settings, your device will either connect to the one with the strongest signal or the one it sees first. But your device will not connect to two networks simultaneously. Some devices also prioritize the most preferred network or the network they most recently joined. This is also why attackers can impersonate a network just by copying its name (more on that below).
Who assigns SSID?
Manufacturers or internet service providers usually create default SSIDs for routers. A default SSID can range from the router’s brand name to something a little more complex. For example, while many default SSIDs are called “Linksys” or “Netgear,” others are mixtures of brand names and random numbers. You can change your SSID at any time from your router’s settings.
Check out this short video which explains SSID in a visual format:
Why should I change my SSID?
To avoid confusion
With so many default SSIDs being identical, changing your SSID can help avoid confusion. Hypothetically, there may be many SSIDs called “TP-Link” in the neighborhood, but there will only be one SSID called “TellmyWiFiIloveher.” It’s usually best to connect to your own Wi-Fi network rather than any Wi-Fi in the area for both performance and privacy.
For security
Some hackers can use your router’s default SSID to determine the make and model of your device in order to exploit any known vulnerabilities. A threat actor with complete control over your hacked router could direct you to malicious websites or spy on your activity.
A custom SSID also makes your own network easier to recognize, which helps against Evil Twin attacks. In an Evil Twin attack, a hacker sets up a fake access point with the same name as a legitimate network, often in busy places like cafés, hotels, and airports. Victims unknowingly connect to the malicious access point, and the attacker can capture their data or send them to phishing pages. Keep in mind that an attacker can copy any network name, custom or not, so a new SSID won’t stop an Evil Twin on its own. Turning off auto-join for open networks and using a VPN on public Wi-Fi matter more.
When you pick a new name, leave out personal details like your name, address, or apartment number. Anyone within range can see your SSID.
How to change your SSID
The exact steps depend on your router, but the process usually looks like this:
- Connect to your Wi-Fi network, or plug into the router with an Ethernet cable.
- Open your router’s app, or type the router’s admin address into a browser. The address is often printed on the router’s label. Common ones are 192.168.0.1 and 192.168.1.1.
- Sign in with your router’s admin username and password. If you’re still using the default admin password, change it while you’re there.
- Find the wireless or Wi-Fi settings and edit the network name (SSID). If your router has separate 2.4 GHz and 5 GHz networks, you may need to rename both.
- Save your changes. The router may restart, and you’ll need to reconnect your devices to the new network name.
Should you hide your SSID?
Most routers let you stop broadcasting your SSID, which hides it from the list of available networks. But hiding your SSID offers little real protection. The network name still shows up in traffic between your devices and the router, and free tools can reveal it. Hiding it can also make it harder to connect new devices, and some devices set to join a hidden network will call out its name wherever you go. Strong encryption and a strong Wi-Fi password do far more to keep your network safe.
What is my SSID?
Router
Your default SSID is usually printed on a sticker on the bottom or back of your router, often next to the default Wi-Fi password. If you’ve changed your network name since, the sticker won’t match. It’s usually easier to check the network name through your device’s operating system.
Windows
Find the Wi-Fi icon on the bottom right of your taskbar and click it. On Windows 11, click the arrow next to the Wi-Fi button in Quick Settings. Your network’s SSID will be marked “Connected,” and you’ll also see the SSIDs of other networks in your area. On Windows 10, the list of networks opens as soon as you click the icon.
macOS
Look in the menu bar in the upper right corner of your screen for the Wi-Fi icon. Click the Wi-Fi icon to see a list of networks in range and their SSIDs. Your network’s SSID will be distinguished with a blue Wi-Fi icon while the other network names will be gray.
iOS
Finding your SSID on iPhone or iPad is a straightforward task. Open Settings and then tap Wi-Fi. Here, you’ll see a checkmark next to your SSID.
Android
The steps vary by phone maker. On Google Pixel and most stock Android phones, open Settings and tap Network & internet, then Internet. On Samsung Galaxy phones, open Settings and tap Connections, then Wi-Fi. Your connected network’s SSID appears at the top, with other networks in the area listed below it. Tap your network to see more details.
Network security tips
Changing your default SSID is just one step towards better network security. Additional good practices include:
- Use WPA3 encryption if your router and devices support it, or WPA2 (AES) if they don’t.
- Set a long, unique Wi-Fi password, and change the router’s default admin password.
- Update your router’s firmware for the latest security fixes, and replace routers that no longer get updates.
- Turn off WPS and remote management if you don’t use them, and keep your router’s firewall on.
- Use a VPN on public Wi-Fi. A VPN encrypts the traffic from your device and hides your IP address, though it doesn’t secure the network itself. Be cautious of using free VPNs. Read all you need to know about VPNs here: What is a VPN?