Wi-Fi deauthentication attack
... that some hotels have made a Wi-Fi deauthentication attack on their guests' computers?
... that some hotels have made a <b id="mwCUI"><a href="./Wi-Fi_deauthentication_attack" id="mwCUM" rel="mw:WikiLink" title="Wi-Fi deauthentication attack">Wi-Fi deauthentication attack</a></b> on their guests' computers?