Is it safe to use the wifi inside the hotel? Do you steal personal information?

Unsafe, may steal personal information. Public ***WIFI is insecure because it collects your information when you use it. The Mac address, these hardware information and your Zhihu ID (or others) are monitored.

Or it just hijacked your network to do something ulterior (for example, you visited Baidu, jumped to hao 123 and then jumped back to Baidu, shamelessly jumping to other homepages without returning). Without this network environment, you can't continue to hijack you (unless your device is recruited).

Wi-Fi is a technology that allows electronic devices to connect to a wireless local area network (WLAN), usually using 2.4G UHF or 5G SHF ISM radio frequency band. Connecting to WLAN is usually password protected; But it can also be open, allowing any device within the WLAN range to connect. Wi-Fi is a brand of wireless network communication technology, which is owned by the Wi-Fi Alliance. The purpose is to improve the interoperability between wireless network products based on IEEE 802. 1 1 standard. Some people call the local area network using IEEE 802. 1 1 series protocols wireless fidelity. Even equate Wi-Fi with wireless Internet (Wi-Fi is an important part of WLAN).