Quote:Starting with the May 2019 (v1903) update that is currently being rolled out, Windows 10 will show a warning to users if they are connecting to a WiFi network that is using WEP or TKIP.
 
WEP (Wired Equivalent Privacy) and TKIP (Temporal Key Integrity Protocol) are authentication protocols used for securing and encrypting WiFi connections.
Both protocols have been deemed insecure many years ago, and it is widely known and accepted that WiFi connections carried out via WEP or TKIP can be decrypted with relative ease.
 
In a support document published this week, Microsoft said that after users update to the Windows 10 v1903, Windows will show a warning in the notification panel when they are on insecure WiFi networks that use one of these two protocols.

Depending on the situation, Microsoft recommends (1) disconnecting from these networks and using other, more secure alternatives, or (2) updating home/work router settings, so WiFi connections use a more modern WiFi authentication protocol, like WPA3.