Yes, hotels can technically track your browsing activity if you are connected to their unsecured or "open" Wi-Fi network. When you use the hotel's infrastructure, your data passes through their routers and servers. While they usually cannot see the specific content of encrypted (HTTPS) websites—such as your bank login or private messages—they can see the domains you visit (e.g., they know you are on "facebook.com" but not what you are posting). Many hotels use third-party managed service providers for their Wi-Fi, and these companies may collect "metadata" for marketing purposes, to manage bandwidth, or to comply with local data retention laws. To protect your privacy in a hotel, it is highly recommended to use a Virtual Private Network (VPN), which encrypts all your traffic from the device to the VPN server, making it invisible to the hotel's network administrators. Additionally, avoid performing sensitive transactions on hotel Wi-Fi and ensure your device's "file sharing" features are turned off to prevent other guests on the same network from potentially accessing your files.