Mass users and fragmented Internet habits make public WiFi a mandatory requirement in the mobile era. With this feature, a universal WiFi key that provides free internet services has been used by 900 million users for four years. Google and Facebook have launched similar services in several regions.
However, in recent years, the media has repeatedly reported the theft of user accounts due to the use of public WiFi. The public has great concerns about the security of public WLANs: Will the use of public WLANs lead to the leakage of personal information and even property damage? The answer is yes, some hackers can easily obtain various data information on your mobile phone through your connection, including bank card account number and password. Using a wifi jammer can shield the surrounding WiFi network.
How is your personal data released? Maybe you drink coffee, use free WiFi, and then your personal information is stolen. In recent years, free public WiFi has become a hidden danger for citizens to disclose personal information and endanger network security. Therefore, WLAN management in public places has become a focus of attention. Corresponding countermeasures are currently being studied.