An information disclosure issue exists in Milesight routers. This allows attackers to access sensitive router components. Reports indicate that approximately 19,000 Milesight routers with exposed APIs have been identified, with at least 572 publicly accessible without authentication. This has been exploited in real-world attacks, primarily in Europe (Sweden, Italy, Belgium), to send SMS spam containing phishing links. The vulnerability allows attackers to view system logs, locate, and compromise administrator passwords. These compromised credentials can then be used to abuse the router's SMS API to send malicious messages. The API can be exploited due to misconfigurations or the presence of the vulnerability. The attackers are leveraging the SMS notification feature commonly found in industrial routers to send spam messages. Some malicious URLs include JavaScript that checks for mobile access before delivering harmful content. Connections to a Telegram bot named GroozaBot have also been observed. The `SMS API` is being abused in these attacks.