The Haidilao obscene video incident was solved, and the WiFi security problem in public places is serious

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The Haidilao indecent video incident that was hotly discussed a few days ago has finally come to light. The Jianghan District Public Security Bureau issued a notice saying that it was caused by a 28-year-old man who cracked the WI-FI password and projected the screen onto the Haidilao big screen to play obscene videos. The man has now been criminally detained according to law.

As for how the WI-FI password was cracked, although it has not been announced, let me guess that generally such restaurants provide WI-FI and actively inform users of the password to facilitate Internet access (or public Wi-Fi, the kind that requires authentication); in addition, various software that shares WI-FI passwords on the market may also allow mobile phones to directly connect to specific WI-FI.

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The perpetrator was detained

Once the smart TV and mobile terminal are on the same WI-FI network, the basic conditions for a prank are met. Therefore, part of the responsibility for this incident should be attributed to the lack of security awareness of the Haidilao operator, who did not properly protect the smart TV, resulting in the risk of malicious screen projection.

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Nowadays, most smartphones support the function of wireless screen projection, and most smart TVs use customized systems based on Android, which also basically support wireless screen projection protocols, including AirPlay, Miracast, and DLNA. Among them, AirPlay and DLNA require the mobile phone and the screen projection device to be connected to the same WI-FI, while Micracast does not need to be connected to WI-FI, and can be directly projected through Wi-Fi Direct.

After the incident, Haidilao officially responded that it sincerely apologized to the customers dining on site and the affected customers. At the same time, it has checked and rectified the company's TV network system to improve information security protection and prevent similar incidents from happening again.

Many shopping malls, restaurants, hospitals and other places lack sufficient wireless security awareness, network planning is chaotic, and the division of networks used by customers' mobile phones, ordering terminals and smart TVs is not clear, resulting in frequent similar security incidents. Although there is the possibility of hacker attacks, in the case of mobile phone wireless screen projection, hacking methods are often not needed at all, and managers should take basic preventive measures.