Samsung has built a feature into its devices with One UI that notifies about suspicious WLAN networks, and if suspicious requests or redirections are detected by the Samsung device, a notification will appear.

Android 10 (One UI 2.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Connections
Step 3:  Tap on  Wi-Fi
Step 4:  Open the  menu
Step 5:  Tap on  Advanced
Step 6:  Enable or disable  Detect suspicious networks
  1. Open the Settings
  2. Tap on Connections
  3. Tap on Wi-Fi
  4. Open the menu
  5. Tap on Advanced
  6. Enable or disable Detect suspicious networks

Samsung Instructions
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