Zbtlink routers are reportedly establishing covert connections with a domain registered in China. These connections occur approximately every 35 seconds, raising significant cybersecurity concerns. The surreptitious communication suggests potential data transmission or remote access vulnerabilities. Security researchers discovered this behavior, highlighting a possible backdoor or monitoring mechanism within the routers. This raises questions about user privacy and the security of networks utilizing these devices. The frequent, automated contact indicates a systematic issue rather than a one-time anomaly, prompting investigation into the router's firmware and the purpose of the data exchange. Users are advised to exercise caution and consider alternative router options.