Samsung
Enable Suspicious Network Detection for Wi-Fi auf Samsung
Open Wi-Fi networks at airports, hotels, or cafes sometimes reroute your traffic through a captive portal before granting internet access. In most cases this is harmless, but it can also be used to intercept requests or push you toward a fake login page. Samsung built a background check into One UI that watches for this pattern and sends a notification when a connected network behaves suspiciously.
This detection runs quietly and does not block the connection on its own. It only alerts you, so you can decide whether to stay connected or switch networks. If the toggle is off, your phone will not warn you about redirects or unusual requests, even on networks that clearly misbehave.
To check or change the setting, go to Tap on Settings ➤ Tap on Connections ➤ Tap on Wi-Fi ➤ Open the Menu ➤ Tap on Advanced ➤ Enable or disable Detect suspicious networks.
Turning this off can be useful on networks that legitimately use redirects, such as hotel login pages that repeatedly trigger false alerts. For everyday use on unfamiliar networks, keeping it enabled is the safer default since it adds no noticeable battery or performance cost.