Yes, by manipulating the router settings, attackers can steal the network traffic data passing through. Here are some common technical means: 1. **ARP spoofing**: Attackers can disguise their MAC address as the MAC address of other devices in the network by performing ARP spoofing (ARP Spoofing), thereby intercepting the traffic between these devices and the router. 2. **DNS hijacking**: Attackers may modify the router's DNS settings to redirect user requests to malicious websites, thereby stealing users' sensitive information. 3. **Traffic analysis**: By maliciously setting up the router, attackers can monitor and analyze the data traffic passing through the router to obtain sensitive information. 4. **Wi-Fi sniffing**: In a wireless network, attackers can use sniffing tools to capture wireless signals and obtain transmitted data packets, especially when there is no encryption. To prevent these attacks, users can take the following measures: - Change the default username and password of the router regularly. - Use strong encryption (such as WPA3) to protect the wireless network. - Check and update the router firmware regularly. - Use a virtual private network (VPN) to encrypt network traffic. - Monitor the devices connected to the network to ensure that there are no suspicious devices. Adopting these methods can effectively reduce the risk of being attacked.