The Wi-Fi encryption protocol for this Wi-Fi network is WPA-2.
Nowadays, most routers run on WPA2 or WPA3. However, despite all the advances in encryption, some Wi-Fi networks may still use WEP, the original protocol from twenty-five years ago. Even WPA is no longer effective.
Windows displays a warning when you try to connect to a network secured with older encryption protocols, such as WEP or TKIP. This message is for your safety and is a warning, especially if you're using Windows 10 and 11, that you'll soon be unable to connect to these less secure protocols.
This warning states:
" [Network name] is not secure. This Wi-Fi uses an older security russia telegram data standard that is being phased out. We recommend connecting to a different network. "
This message informs you that you are trying to connect to a network that is still using WEP or WPA-TKIP encryption.
Error message: "Wi-Fi is not secure."
Source: DALL-E 3.
WEP was never a good choice for encryption, even when it was first released. The Wi-Fi Alliance discontinued the encryption method in 2004. A year later, the FBI demonstrated how easily hackers could break WEP encryption by exploiting its many weaknesses.
The Wi-Fi Alliance planned to replace WEP with WPA-TKIP, but this protocol works very similarly to the original. They have many of the same vulnerabilities. If you can crack one, you can usually crack the other.