If you've found a device named Shenzhen Bilian Electronic on your Wi-Fi network, it's likely that someone in your home or office has connected an IoT device to your network without your knowledge. While there's no need to panic, it is important to take steps to secure your network and prevent unauthorized devices from being able to connect.
The first thing you should do is change your Wi-Fi password. This will prevent anyone who doesn't know the new password from being able to access your network. You should also consider enabling encryption on your router. This will make it more difficult for someone to eavesdrop on your network traffic and potentially steal sensitive information like passwords or financial data.
If you're still concerned about the security of yournetwork, you can try using a tool like Fing (https://www.fing.com/)to scan for devices that are connected to your Wi-Fi and get more information about them. Once you have a list of devices, you can research each one individually to determine if it's something you authorized or not. If not, you can take steps to block that device from connecting to your Wi-Fi in the future.
Shenzhen Bilian Electronic Co., Ltd is a Chinese electronics manufacturer that produces a wide range of products including LED lights, speakers, and other consumer electronics items. It's possible that one of their products was purchased by someone in your home or office and then connected to your Wi-Fi without you knowing. While there's no need to be overly concerned, it is important to take steps to secure your network so that unauthorized devices cannot connect and potentially compromise its security