Trouvé sur le net:
« Quand vous prenez un TGV et que vous voulez utiliser le wifi
=> ouvrez la page de connexion
=> Demander l'aide du bot
=> Dites que vous avez un billet étranger
=> Voila, vous avez accès sans donner votre idenfication. Vous pouvez lancer votre vpn »

“%p%s%s%s%s%n” 🤔

The Wi-Fi subsystem probably passes the Wi-Fi network name (SSID) unsanitized to some internal library that is performing string formatting, which in turn causes an arbitrary memory write and buffer overflow. This will lead to memory corruption and the iOS watchdog will kill the process, hence effectively disabling Wi-Fi for the user.

TL;DR Websites uses now HTTPS so public Wi-Fi is not a problem anymore

Use it with a VPN is better :

• Some protocols are not blocked anymore (P2P, VOIP, ...)
• Websites are not blockled by the WAP
• Avoid DNS lies
• Hide metadatas from navigation

VPN is still useful on public Wi-Fi
(shared by sebsauvage)

Sur l'occupation des canaux android.
Application android : https://f-droid.org/fr/packages/com.vrem.wifianalyzer/